CN108309412B - Puncture sleeve device for laparoscopic puncture outfit - Google Patents
Puncture sleeve device for laparoscopic puncture outfit Download PDFInfo
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- CN108309412B CN108309412B CN201810201518.XA CN201810201518A CN108309412B CN 108309412 B CN108309412 B CN 108309412B CN 201810201518 A CN201810201518 A CN 201810201518A CN 108309412 B CN108309412 B CN 108309412B
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- 238000002347 injection Methods 0.000 claims abstract description 64
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- 230000007246 mechanism Effects 0.000 claims description 8
- 230000006378 damage Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 22
- 230000008569 process Effects 0.000 description 21
- 230000000694 effects Effects 0.000 description 18
- 238000013461 design Methods 0.000 description 15
- 210000000683 abdominal cavity Anatomy 0.000 description 13
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- 210000001519 tissue Anatomy 0.000 description 11
- 125000006850 spacer group Chemical group 0.000 description 10
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- 208000005646 Pneumoperitoneum Diseases 0.000 description 3
- 210000003815 abdominal wall Anatomy 0.000 description 3
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- 238000001356 surgical procedure Methods 0.000 description 3
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Classifications
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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
- A61B17/3421—Cannulas
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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
- A61B17/00234—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
- A61B17/3474—Insufflating needles, e.g. Veress needles
-
- 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
- A61B17/3478—Endoscopic needles, e.g. for infusion
-
- 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
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Pathology (AREA)
- Surgical Instruments (AREA)
Abstract
The invention relates to a puncture sleeve device for a laparoscope puncture outfit, which comprises a puncture sleeve body and a two-stage sealing device, wherein the puncture sleeve body comprises a puncture sleeve seat and a sleeve, the two-stage sealing device is arranged above the puncture sleeve seat, and the sleeve is arranged below the puncture sleeve seat; an air injection valve is arranged on the side wall of the puncture sleeve seat and is integrated with the puncture sleeve. The two-stage sealing device comprises a first sealing component and a second sealing component; the first sealing component is positioned above the second sealing component; the puncture cannula is provided with the puncture device with the specification of 10mm, can directly take out the tissue cut by the operation, can reduce an extra puncture channel, reduces the damage to a patient, and is convenient to use, safe and reliable.
Description
Technical Field
The invention belongs to the field of medical appliances, and particularly relates to a puncture sleeve device for a laparoscopic puncture outfit.
Background
In minimally invasive human medical surgery, once a disease is found in a human body, surgery or excision is needed, in the surgery process, a puncture outfit is firstly needed to be applied, and the puncture outfit is a surgical instrument which punctures the abdominal wall and enters a body cavity channel for other surgical instruments, and belongs to a minimally invasive surgical instrument. The penetrator typically includes a sleeve assembly for access to other surgical instruments and a penetration rod extending through the sleeve assembly. Firstly, in order to penetrate skin, firstly, skin epidermis is incised by a scalpel, then skin is penetrated by a puncture rod and the puncture rod together with a sleeve component enter a body cavity, then the puncture rod is withdrawn, the sleeve component can be used as a channel for introducing various instruments and tools into an abdominal cavity and providing a gas filling chamber for raising the abdominal wall to the upper part of an organ, in order to prevent gas leakage in the abdominal cavity when various instruments and tools are inserted into the abdominal cavity in the operation process, a sealing component is required to be arranged in the sleeve component, the common sealing component generally comprises a mounting seat, a plurality of sealing gaskets which are distributed in a woven mode or are arranged in a staggered and overlapped mode circumferentially are arranged on the mounting seat, and in use, the instruments pass through the center of the sealing component formed by a plurality of the sealing gaskets, so that the sealing effect is achieved.
In the pneumoperitoneum establishment process, the phenomena of air leakage of the outer sheath and the incision part of human tissue often occur, so that the pneumoperitoneum establishment fails; in addition, because the inside of the outer sheath of the puncture outfit needs to enter the endoscope and the surgical instrument in the operation, a doctor can continuously adjust the insertion angle of the puncture outfit and take out or insert the surgical instrument back and forth according to the operation requirement in the whole operation process, and the puncture outfit can also slip and leak air; meanwhile, in the puncturing process, in order to prevent the tissues in the human body from blocking the operation of the puncture needle, the puncture needle is also provided with an exposed blade, and as the blade with the puncture tool bit is always exposed, the puncture tool bit can accidentally injure the internal organs of the human body after entering the incision of the tissues of the human body.
In addition, the puncture channel required to be established in the typical gynecological operation is convenient for taking out the cut uterine tissue, and a puncture channel of 15mm is additionally required to be established in the prior art, so that the damage to the patient is large. If the design is adopted, the puncture cannula for taking out the larger lesion organ (tissue) can be directly taken out, so that an additional puncture channel can be reduced, and the damage to a patient is reduced.
Disclosure of Invention
The invention aims at overcoming the defects of the prior art and provides a puncture cannula device for a laparoscope puncture outfit. The puncture cannula can directly take out the tissue cut by the operation, can reduce an extra puncture channel, reduces the damage to a patient, and is convenient to use, safe and reliable.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the invention relates to a puncture cannula device for a laparoscope puncture outfit, which comprises a puncture cannula body and a two-stage sealing device, wherein the puncture cannula body comprises a puncture cannula seat and a cannula, the two-stage sealing device is arranged above the puncture cannula seat, and the cannula is arranged below the puncture cannula seat; an air injection valve is arranged on the side wall of the puncture sleeve seat and is integrated with the puncture sleeve.
Further, the two-stage sealing device comprises a first sealing assembly and a second sealing assembly; the first sealing component is positioned above the second sealing component; the first sealing assembly comprises a locking upper cover, a supporting ring, a supporting sheet, a comprehensive sealing valve, an interval locking ring and a locking conversion cap, wherein the supporting ring, the supporting sheet, the comprehensive sealing valve and the interval locking ring are arranged between the locking upper cover and the locking conversion cap, the supporting ring and the supporting sheet are arranged in the comprehensive sealing valve, and the interval locking ring is arranged below the comprehensive sealing valve; the second sealing assembly comprises a locking lower cover and a duckbill sealing valve, and the duckbill sealing valve is arranged in the locking lower cover; the first sealing component and the second sealing component are fixedly installed through the connection of the locking conversion cap and the locking lower cover.
Further, the second sealing component is arranged above the puncture sleeve seat, specifically, a first compression ring and a second compression groove are sequentially arranged on the upper portion of the duckbill sealing valve, the first compression ring is correspondingly arranged in the connecting seat in the locking lower cover, and the second compression groove is correspondingly arranged in the mounting cylinder in the puncture sleeve seat.
Further, a transverse clamping groove and a vertical clamping slot are also formed in the peripheral wall of the upper part of the puncture sleeve seat, and the inner peripheral wall of the locking lower cover is correspondingly arranged on the transverse clamping block and the vertical clamping strip; the transverse clamping blocks are arranged in the transverse clamping grooves, and the vertical clamping strips are arranged in the vertical clamping slits.
Further, a locking conversion mechanism is arranged among the locking upper cover, the locking conversion cap and the locking lower cover, a clamping locking block is arranged on the outer wall of the locking conversion cap, a clamping locking groove is arranged on the inner wall of the locking upper cover, and the clamping locking block is correspondingly arranged in the clamping locking groove; the lower part of the locking conversion cap is provided with a mortise lock body, the upper part of the locking lower cover is provided with a mortise lock groove, and the mortise lock body is arranged in the mortise lock groove.
Further, the clamping locking block comprises a transverse locking block and a vertical locking block, a transverse locking groove and a vertical locking groove are formed in the locking upper cover, the transverse locking block is installed in the transverse locking groove, and the vertical locking block is installed in the vertical locking groove; the lock body is an L-shaped arc plate, the number of the L-shaped arc plates is two, and the L-shaped arc plates are uniformly distributed at the lower part of the locking conversion cap; the mortise lock groove comprises a plug-in rotary groove and a plug-in clamping groove, and the plug-in rotary groove is communicated with the plug-in clamping groove; the upper part of the plugging clamping groove is also provided with a plugging clamping plate.
Further, a clamping arc plate is arranged at the lower part of the locking lower cover, and the clamping arc plate is correspondingly arranged below the inserting rotary groove; a compression flange is arranged outside the second compression groove and is arranged in a gap between the clamping arc plates; the bottom surface of the first compression ring is an inclined surface, and the outer side edge of the inclined surface is lower than the inner side edge of the inclined surface.
Further, the integrated sealing valve comprises a conical sealing valve and a wavy sealing ring, the supporting sheet is arranged in the conical sealing valve, and the supporting ring is arranged above the supporting sheet; the wave-shaped sealing ring comprises an outer edge skirt edge and an inner edge skirt edge, the outer edge skirt edge is tightly pressed between the locking upper cover and the locking conversion cap; a spacing ring is arranged between the inner edge skirt edge and the conical sealing valve; the interval locking ring is arranged on the periphery of the interval ring.
Further, the cross section of the spacing ring is h-shaped; the interval locking ring comprises an interval locking seat and an interval locking piece, the interval locking seat is correspondingly clamped with a clamping groove at the h-shaped lower part of the interval ring, the interval locking seat is positioned on a bottom plate of the locking conversion cap, and the interval locking piece is arranged in a clamping groove between the interval ring and the inner edge skirt; the upper opening of the interval locking piece is in a closing-in shape.
Further, two concave parts are arranged on the peripheral surface of the puncture sleeve seat, an air injection valve is arranged at the outer side of one concave part, the air injection valve comprises a valve body, a valve core and an air injection pipe, the air injection pipe is connected with a mounting cylinder in the concave part, and an included angle between the air injection pipe and the mounting cylinder is 65-75 degrees; the valve body is cylindrical and is arranged on the gas injection pipe in a left-right through direction; a valve core capable of rotating circumferentially to communicate or block the gas injection pipe is arranged in the valve body; the puncture cannula seat, the valve body and the gas injection pipe are of an integrated structure.
Advantageous effects
The sealing assembly in the puncture outfit has reliable sealing performance by adopting a plurality of sealing devices, particularly the design of the first sealing valve can effectively ensure the dynamic sealing effect in the operation process, and the gas injected into the abdominal cavity through the gas injection valve of the puncture outfit can not leak out in the operation process, so that the normal operation of the abdominal cavity can be ensured, and the use is safe and reliable.
The connecting structure between the locking lower cover and the puncture sleeve seat in the puncture outfit can effectively compress the sealing assembly, can effectively avoid false touch, and can ensure the safety of the puncture outfit in the use process by screwing the puncture positioning guide cover out of the puncture sleeve seat.
The locking upper cover, the locking conversion cap and the locking lower cover are fixedly connected, and the locking lower cover and the locking conversion cap are detachably connected, so that the locking conversion cap can be rapidly removed from the locking lower cover, further, surgical tissues can be directly pulled out of an outlet of the locking lower cover, the taking-out requirement of the surgical tissues is effectively met, additional puncture channels can be reduced, and damage to patients is reduced.
The valve mounting structure in the small puncture outfit adopts integrated molding between the gas injection valve and the puncture sleeve seat, has strong mounting stability, ensures good sealing effect during use and is not easy to generate gas leakage or liquid leakage.
In a word, the disposable puncture outfit has reasonable design, compact structure, safe and effective use, can greatly reduce the wound area in clinical operation, greatly shorten the operation time, reduce the bleeding and postoperative infection of patients and improve the operation quality.
Drawings
FIG. 1 is a schematic view of the overall structure of the laparoscopic puncture outfit of the present invention;
FIG. 2 is a schematic view of the overall structure of the laparoscopic puncture outfit cannula according to the present invention;
FIG. 3 is a schematic view of the explosion structure of the sleeve of the laparoscopic puncture outfit according to the present invention;
FIG. 4 is a schematic view showing the overall structure of a puncture needle of the laparoscopic puncture outfit of the present invention;
FIG. 5 is a schematic view showing the structure of a lancet sealing cap of the laparoscopic puncture outfit according to the present invention;
FIG. 6 is a schematic view of the structure of the puncture needle rod of the laparoscopic puncture outfit of the present invention;
FIG. 7 is a schematic cross-sectional view of a lancet sleeve of the laparoscopic puncture device according to the present invention;
FIG. 8 is a schematic cross-sectional view of a two-stage sealing device of the laparoscopic puncture outfit of the present invention;
FIG. 9 is a schematic view of the structure of the needle cannula holder of the laparoscopic puncture outfit of the present invention;
FIG. 10 is a schematic view of an isometric exploded view of a two-stage seal of the laparoscopic penetrator of the present invention;
FIG. 11 is a schematic view of a vertical exploded view of a two-stage sealing device of the laparoscopic puncture outfit of the present invention;
FIG. 12 is a schematic cross-sectional view of a second seal assembly of the laparoscopic puncture instrument according to the present invention;
FIG. 13 is a schematic view of the duckbill seal valve of the laparoscopic punch of the present invention;
FIG. 14 is a schematic view of an exploded view of the locking switching mechanism of the laparoscopic puncture outfit of the present invention;
FIG. 15 is a schematic view showing the structure of a locking conversion cap of the laparoscopic puncture outfit according to the present invention;
FIG. 16 is a schematic view of the locking cap of the laparoscopic puncture outfit of the present invention;
FIG. 17 is a schematic view showing the bottom structure of the locking lower cap of the laparoscopic puncture outfit of the present invention;
FIG. 18 is a schematic elevational view of the locking lower cover of the laparoscopic puncture outfit of the present invention;
FIG. 19 is a schematic view of the vertical exploded view of the first seal assembly of the laparoscopic puncture outfit of the present invention;
FIG. 20 is a schematic view of an isometric exploded view of a first seal assembly of the laparoscopic penetrator of the present invention;
FIG. 21 is a schematic cross-sectional view of a first seal assembly of the laparoscopic puncture instrument according to the present invention;
FIG. 22 is a schematic view showing a forward cross-sectional structure of the integrated sealing valve of the laparoscopic puncture device according to the present invention;
FIG. 23 is a schematic view showing a reverse cross-sectional structure of the integrated sealing valve of the laparoscopic puncture device according to the present invention;
FIG. 24 is a schematic view of the frying structure of the spacer locking ring of the laparoscopic puncture outfit according to the present invention;
FIG. 25 is a schematic view showing the mounting structure of the gas injection valve of the laparoscopic puncture outfit according to the present invention;
FIG. 26 is a schematic view of the valve stem structure of the laparoscopic puncture outfit of the present invention;
wherein 1-puncture cannula body, 11-puncture cannula holder, 111-mounting cylinder, 112-concave part, 113-rib plate, 114-transverse clamping groove, 115-vertical clamping groove, 12-cannula, 121-cannula annular line, 2-puncture needle, 21-puncture needle sealing cover, 211-flat surface, 212-arc surface, 213-convex line, 214-positioning groove, 215-pressing groove, 22-puncture needle bar, 221-rod body, 222-puncture needle bar holder, 223-puncture cone head, 224-limiting block, 225-positioning column, 226-pressing block, 3-gas injection valve, 31-gas injection pipe, 32-valve body, 321-arc notch, 33-valve rod, 331-arc limiting block, 332-conical end, 34-switch handle, 341-anti-slip flange, 35-vent, 4-first seal assembly, 41-locking upper cap, 411-transverse slot, 412-vertical slot, 413-limit slot, 414-petal slot, 42-support ring, 43-support tab, 44-integrated seal, 441-tapered seal valve, 442-spacer ring, 443-wavy fold, 444-skirt, 445-skirt, 446-bead, 45-spacer locking ring, 451-spacer locking seat, 452-spacer locking tab, 46-locking conversion cap, 461-locking conversion cap bottom plate, 462-locking conversion cap outer wall, 463-transverse locking tab, 464-vertical locking tab, 465-mortise lock, 5-second seal assembly, 51-locking lower cap, 511-inserting rotary grooves, 512-inserting clamping grooves, 513-inserting clamping plates, 514-clamping arc plates, 515-transverse clamping blocks, 516-vertical clamping strips, 517-connecting seats, 52-duckbill sealing valves, 521-first compression rings, 522-second compression grooves and 523-compression flanges.
Detailed Description
The invention is further described below in conjunction with the detailed description. It is to be understood that these examples are illustrative of the present invention and are not intended to limit the scope of the present invention. Further, it is understood that various changes and modifications may be made by those skilled in the art after reading the teachings of the present invention, and such equivalents are intended to fall within the scope of the claims appended hereto.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be the communication between the two parts. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art in a specific case.
As shown in fig. 1, the laparoscopic puncture outfit of the invention is a puncture outfit with the specification of 10mm, and comprises a puncture sleeve 1 and a puncture needle 2, wherein a channel for the puncture needle 2 to penetrate is arranged on the vertical center of the puncture sleeve 1 and is marked as a puncture channel, and when in use, the puncture needle 2 is inserted into the puncture sleeve 1 through the puncture channel and extends out from the tail end of the puncture sleeve 1; an air injection valve 3 is arranged on the side wall of the puncture sleeve seat 11, and the air injection valve 3 and the puncture sleeve 1 are integrated, so that air can be supplied to the body through a puncture outfit, and the existence of pneumoperitoneum can be maintained.
As shown in fig. 2-3, the puncture cannula 1 of the invention comprises a puncture cannula body and a two-stage sealing device, wherein the puncture cannula body comprises a puncture cannula seat 11 and a cannula 12, the two-stage sealing device is arranged above the puncture cannula seat 11, and the cannula 12 is arranged below the puncture cannula seat 11; the annular ring 121 is arranged on the outer wall of the sleeve 12, and the purpose of the annular ring is to increase the friction force between the sleeve and the abdominal wall, so that the sleeve is prevented from being extruded out of the abdomen under the action of the abdominal cavity gas pressure, and the operation is prevented from being influenced.
As shown in fig. 4 to 6, the puncture needle of the present invention comprises a puncture needle rod 22 and a puncture needle sealing cover 21, wherein the puncture needle rod 22 comprises a rod body 221, a puncture conical head 223 and a puncture needle rod seat 222, the puncture needle rod seat 222 is arranged at the top of the rod body 221, and the puncture conical head 223 is arranged at the bottom of the rod body 221; the periphery of the cover body of the puncture needle sealing cover 21 is divided into two symmetrical flat surfaces 211 and two symmetrical arc surfaces 212, the flat surfaces 211 are smooth surfaces, the arc surfaces 212 are provided with convex lines 213, the design aims to take the flat surfaces 211 as holding parts for convenient grasping, the arc surfaces 212 as operating surfaces, and the convex lines 213 on the upper surfaces have an anti-skid function and are convenient for inserting and extracting the puncture needles; the positioning groove 214 is formed in the puncture needle sealing cover 21 close to the flat surface 211 side, the corresponding positioning column 225 is arranged on the puncture needle rod seat 222, the positioning column 225 is inserted into the positioning groove 214 to fixedly mount the puncture needle sealing cover 21 and the puncture needle rod seat 222, the positioning column 225 and the positioning groove 214 ensure direct insertion so as to fix the puncture needle sealing cover 21 and the puncture needle rod seat 222, the mounting position of the puncture needle sealing cover 21 on the puncture needle rod seat 222 is directly positioned, the flat surface 211 is ensured to be used as a holding part to face the hand during operation, erroneous mounting is effectively avoided, and the mounting mode is simple and convenient.
Further, the puncture needle bar 22 further comprises a limiting block 224, wherein the limiting block 224 is positioned below the puncture needle bar seat 222, and one side of the limiting block 224 is in seamless connection with the puncture needle bar seat 222; the positioning column 225 is positioned above the limiting block 224, and the tip end in the puncture conical head 223 is positioned right below the limiting block 224; the limiting block 224 is used for limiting the mounting position of the puncture needle rod 22 in the locking upper cover 41, so that the puncture needle can be effectively prevented from rotating radially in the puncture sleeve, and the stability of the operation process is ensured; in addition, the relative positions of the positioning column 225, the puncture conical head 223 and the limiting block 224 are limited, so that the installation direction of the puncture needle sealing cover 21 can be ensured, and the installation direction of the puncture needle in the puncture sleeve can be ensured.
Further, the puncture needle bar seat 222 is disc-shaped, and the diameter of the puncture needle bar seat 222 is equal to the inner diameter of the bottom of the puncture needle sealing cover 21. The bottom of the arc-shaped surface 212 of the puncture needle sealing cover 21 is also provided with a pressing groove 215, and the puncture needle rod seat 222 is provided with a pressing block 226 corresponding to the pressing groove 215. The pressing grooves 215 are uniformly distributed on the inner circumferential surface of the lancet sealing cover 21. The design can further strengthen the installation stability of the puncture needle sealing cover 21 and the puncture needle rod seat 222, and the designed connection modes are all clamping connection, so that the problem that the stress in the high polymer material changes and cracking is easy to occur due to the fact that the crystal structure in the high polymer material is changed by adopting ultrasonic welding in the prior art is effectively avoided; therefore, the components in the application are connected in a clamping manner, so that the process steps and the process equipment are simpler and quicker, the safety and the environmental protection are realized, and the production cost is saved.
Further, the other side of the stopper 224 is seamlessly connected with the rod 221. The limiting block 224 is an L-shaped limiting block 224, the short side of the L-shaped limiting block 224 is in seamless connection with the puncture needle rod seat 222, and the long side of the L-shaped limiting block 224 is in seamless connection with the rod body 221. The L-shaped limiting block 224 and the puncture needle rod 22 are integrally formed, the limiting block 224 and the puncture needle rod 22 are very simple to manufacture and are very stable to connect, and the puncture needle rod 22 can be effectively prevented from radially rotating in the puncture sleeve and is not easy to damage due to stress.
As shown in fig. 7-11, the two-stage sealing device of the present invention comprises a first sealing assembly 4 and a second sealing assembly 5; the second seal assembly 5 includes a locking lower cap 51 and a duckbill seal valve 52, the duckbill seal valve 52 being mounted in the locking lower cap 51.
As shown in fig. 12-13, the second sealing assembly 5 of the present invention is installed above the puncture cannula holder 11, specifically, the upper part of the duckbill seal valve 52 is sequentially provided with a first compression ring 521 and a second compression groove 522, the first compression ring 521 is correspondingly installed in the connection seat 517 in the locking lower cover 51, and the second compression groove 522 is correspondingly installed in the installation cylinder 111 in the puncture cannula holder.
Further, a clamping arc plate 514 is further arranged at the lower part of the locking lower cover 51, and the clamping arc plate 514 is correspondingly arranged below the inserting rotary groove 511; the second pressing groove 522 is provided with a pressing flange 523 at the outside, and the pressing flange 523 is installed in the gap between the clamping arc plates 514; the clamping arc plates 514 are arranged in the locking lower cover, so that the compression flange 523 can be effectively limited between the clamping arc plates 514, the duckbill sealing valve caused by the extraction of the puncture needle rod is effectively prevented from radial rotation in the puncture cannula holder, and the stability of operation is ensured.
Further, the bottom surface of the first clamping ring 521 is an inclined surface, and the outer side edge of the inclined surface is lower than the inner side edge thereof; the bottom surface of the first clamping ring 521 is a slope, and the outer edge of the slope is lower than the inner edge thereof. The purpose of this design can duckbill sealing valve and locking lower cover's connecting seat 517 hug tightly the power better, makes the duckbill valve more stable in the installation on puncture sleeve seat, and the sealed effect is better.
Further, a transverse clamping groove 114 and a vertical clamping slot 115 are also arranged on the peripheral wall of the upper part of the puncture cannula holder 11, and the inner peripheral wall of the locking lower cover 51 is correspondingly arranged on a transverse clamping block 515 and a vertical clamping strip 516; the transverse clamping block 515 is installed in the transverse clamping groove 114, and the vertical clamping strip 516 is installed in the vertical clamping slot 115. According to the two-stage connecting structure between the locking lower cover and the puncture sleeve seat in the puncture outfit, the locking lower cover and the puncture sleeve seat can be fixed in the axial direction and the radial direction, false collision can be effectively avoided, the puncture positioning guide cover is screwed out of the puncture sleeve seat, and the safety of the puncture outfit in the use process is ensured.
As shown in fig. 14-18, the locking conversion mechanism of the invention is arranged among the locking upper cover, the locking conversion cap and the locking lower cover 51, and comprises a locking upper cover 41, a locking conversion cap 46 and a locking lower cover 51, wherein a clamping locking block is arranged on the outer wall 462 of the locking conversion cap 46, a clamping locking groove is arranged on the inner wall of the locking upper cover 41, and the clamping locking block is correspondingly arranged in the clamping locking groove; the lower portion of the locking conversion cap 46 is provided with a latch body 465, and the upper portion of the locking lower cover 51 is provided with a latch groove in which the latch body 465 is installed. In the locking conversion mechanism, the locking upper cover 41 is in fastening connection with the locking conversion cap 46, and the locking lower cover 51 is in detachable connection with the locking conversion cap 46, so that the locking conversion cap 46 can be rapidly removed from the locking lower cover 51, and further, surgical tissues can be directly pulled out from an outlet of the locking lower cover 51, and the taking-out requirement of the surgical tissues is effectively met.
Further, the clamping lock block comprises a transverse lock block 463 and a vertical lock block 464, a transverse lock slot 411 and a vertical lock slot 412 are arranged in the locking upper cover 41, the transverse lock block 463 is arranged in the transverse lock slot 411, and the vertical lock block 464 is arranged in the vertical lock slot 412. The clamping locking block comprises a transverse locking block 463 and a vertical locking block 464, and aims to ensure that the locking upper cover 41 is fixedly arranged on the locking conversion cap 46 in both radial direction and axial direction, so that the fastening effect is effectively ensured, and the air leakage caused by mistakenly touching the locking upper cover 41 in the operation process is avoided.
Further, as shown in fig. 15, the mortise lock body 465 of the present invention is provided, the mortise lock body 465 has an L-shaped arc plate, and the number of the L-shaped arc plates is two and is uniformly distributed at the lower portion of the locking conversion cap 46. The mortise lock groove comprises a plug-in rotary groove 511 and a plug-in clamping groove 512, and the plug-in rotary groove 511 is communicated with the plug-in clamping groove 512. A plug-in clamping plate 513 is arranged at the upper part of the plug-in clamping groove 512. The lateral lock pieces 463 and the vertical lock pieces 464 are spaced evenly across the outer wall 462 of the locking conversion cap 46.
Further, the top of the vertical locking piece 464 is tapered, so that the vertical locking piece 464 can be quickly inserted into the locking upper cover 41, and convenience in installation is guaranteed.
Further, the lower portion of the locking lower cap 51 is mounted on the puncture cannula holder. After the locking conversion mechanism is installed, the locking upper cover 41 and the locking lower cover 51 are arranged in a seamless mode, namely the locking conversion cap 46 can be completely installed between the locking upper cover 41 and the locking lower cover 51, the installation of the locking conversion cap 46 cannot be seen from the outside, the whole occupied space is small, and the design is very exquisite.
As shown in fig. 19 to 23, the first sealing assembly 4 of the present invention comprises a locking upper cover 41, a supporting ring 42, a supporting plate 43, a complex sealing valve 44, a spacing locking ring 45 and a locking conversion cap 46, wherein the supporting ring 42, the supporting plate 43, the complex sealing valve 44 and the spacing locking ring 45 are installed between the locking upper cover 41 and the locking conversion cap 46, and the supporting ring 42 and the supporting plate 43 are installed in the complex sealing valve 44, and the spacing locking ring 45 is installed below the complex sealing valve 44; the first sealing assembly 4 and the second sealing assembly 5 are fixedly installed by connecting the locking conversion cap 46 with the locking lower cover 51. In the first sealing assembly of the invention, the integrated sealing valve is taken as a main body for installation, the supporting piece 43 plays a role in supporting and protecting the conical sealing valve 441, the supporting ring 42 and the interval locking ring 45 play a role in supporting the interval, the locking upper cover 41 and the locking conversion cap 46 play a role in compacting the integrated sealing valve 43, and the sealing effect is ensured. The supporting sheet, the supporting ring and the interval locking ring are integrated with the integrated sealing valve after the integrated sealing valve is installed, and can be recorded as an integrated sealing supporting valve component, wherein the integrated sealing supporting valve component is arranged between the locking upper cover and the locking conversion cap, and when a puncture needle rod or a surgical instrument inserted into the integrated sealing valve moves, the integrated sealing supporting valve component integrally moves between the locking upper cover and the locking conversion cap, so that air leakage caused by the movement of the integrated sealing valve alone is avoided.
Further, the integrated seal valve 44 includes a conical seal valve 441 and a wavy seal ring, the wavy seal ring is located at the periphery of the conical seal valve 441, the wavy seal ring includes an outer edge skirt 445, an inner edge skirt 444 and wavy folds 443, the wavy folds 443 are located between the outer edge skirt 445 and the inner edge skirt 444, and the outer edge skirt 445 is located above the wavy folds 443, and a spacer ring 442 is provided between the inner edge skirt 444 and the conical seal valve 441; the support piece 43 is installed in the conical sealing valve 441, and the support ring 42 is installed above the support piece 43; the space locking ring 45 is installed at the outer circumference of the space ring 442.
Further, a plurality of connection posts are provided on the upper portion of the support piece 43, and connection holes are provided on the support ring 42 to be connected with the connection posts in a matching manner. When the puncture outfit is used, the puncture needle contacts with the support piece made of hard rubber sheet, so that the soft rubber conical sealing valve is not damaged. Meanwhile, when the puncture instrument is pulled out, the conical sealing valve is not driven to outwards turn out, and the conical sealing valve has elasticity and can drive the supporting piece to inwards tighten and reset.
Further, the spacer ring 442 has an h-shaped cross-section; the interval locking ring 45 comprises an interval locking seat 451 and an interval locking piece 452, the interval locking seat 451 is correspondingly clamped with a clamping groove at the h-shaped lower part of the interval ring, the lower bottom surface of the interval locking seat 451 is arranged on the locking conversion cap bottom plate 461, and the interval locking piece 452 is arranged in the clamping groove between the interval ring 442 and the inner edge skirt 444. The cross section of the spacing ring 442 is designed into an h shape, the spacing locking seat 451 can be directly arranged in the integrated sealing valve 46 in a clamping manner, ultrasonic welding and other manners are not needed, and the installation is more convenient, simple and environment-friendly.
Further, the h-shaped vertical plate of the spacer ring is higher than the folded edge thereof, and the upper opening of the spacer locking piece 452 is in a closed shape. The purpose of this design is that the interval locking piece of binding off form sets up at the spacer ring 442 outer edge, has the effect of compressing tightly spacer ring internally mounted's holding ring and holding piece, prevents when pjncture needle or surgical instruments extract, drives holding ring or holding piece and deviates from original position, avoids influencing the normal clear of operation.
In addition, the spacer lock tabs 452 of the present invention also provide support to the inner skirt and prevent deformation of the inner skirt.
Further, the spacer lock 452 is mounted at a height greater than the height of the support ring 42.
Further, the outer wall of the locking upper cover 41 is provided with petal grooves 414, so that friction force during rotation of the locking upper cover 41 is increased.
Further, the wavy sealing ring of the integrated sealing valve is located at the periphery of the conical sealing member 441 and the wavy sealing ring is located above the conical sealing member 441; the cross-sectional shape of the inner skirt 444 is a bar; the opening of the wavy folds 443 is upward, and the number of turns of the wavy folds 443 is only one turn. The design purpose of the comprehensive sealing valve is to ensure the flexibility of the surgical instrument when moving in the puncture sleeve seat and the operation precision of the surgical instrument. The wavy sealing ring is specially designed, wherein the outer edge skirt 445 is positioned between the locking upper cover 41 and the locking conversion cap 46 to play a role in fixing the comprehensive sealing valve, the inner edge skirt 444 is positioned below the locking upper cover 41 and is provided with a tiny gap (0.2-0.6 mm) between the inner edge skirt 444 and the lower edge of the locking upper cover 41, when the surgical instrument needs to move, the surgical instrument can drive the inner edge skirt 444 on one side to compress the fold part to move outwards along the skirt 445 side, so that the surgical instrument can flexibly move, and meanwhile, the inner edge skirt 444 can generate corresponding deformation in the moving process and directly contact with the lower edge of the locking upper cover 41, so that the inner edge skirt 444 has certain friction force in the moving process, the surgical instrument cannot excessively move, and the problem of excessive surgical trauma is avoided; meanwhile, in order to avoid the problem of overlarge friction force, the wavy folds 443 are required to be arranged into one circle, and compared with a plurality of folds arranged in the prior art, the corrugated structure has the advantages of larger width in folds, easier production and less damage.
Further, the purpose of the outer edge skirt 445 above the wavy folds 443 of the present invention is not only to have a good sealing effect, but also to enable the integrated sealing valve to be effectively installed between the locking upper cover 41 and the locking conversion cap 46 in a space-saving manner, wherein the cross-sectional shape of the outer edge skirt 445 is an L-shaped skirt, wherein the long-side top of the L-shaped skirt is triangular, and the top of the triangle is designed to ensure a sealing effect between the upper portion of the outer edge skirt 445 and the locking upper cover 41, which is better than a sealing effect of a common circular arc top. The L-shaped skirt has a slope on the bottom surface of the short side and a lower outer edge than the inner edge, and this design is designed to press down on the locking conversion cap 46 to ensure a sealing effect between the lower portion of the outer skirt 445 and the locking conversion cap 46.
Furthermore, the conical sealing element 441 is arranged in the invention, so that the conical structure is beneficial to guiding the puncture needle rod to be penetrated quickly, the puncture needle can be prevented from puncturing the side wall of the conical sealing element 441 as much as possible, and the practical effect is better compared with the sealing elements such as bowl-shaped sealing elements in the prior art; the outer circumferential wall of the conical sealing element 441 is provided with a protruding rib 416, and the purpose of the outer circumferential wall of the conical sealing element 441 is to prevent the soft rubber conical ring from turning outwards when the puncture instrument is pulled out.
Further, the height of the wavy folds 443 is equal to the height of the spacer ring 442. The ratio of the width of the inner skirt 444 to the width of the wavy folds 443 is 1:3-4. The ratio of the width of the outer skirt 445 to the width of the wavy folds 443 is 3:4-5. The inner edge skirt 444 is maintained at the same level as the short sides of the L-shaped skirt. The design can ensure better sealing effect.
Further, the ribs 416 are uniformly distributed on the outer peripheral wall of the conical seal 441. The integrated sealing valve is made of elastic material into flexible medical rubber. Including but not limited to: medical silica gel, medical rubber, medical polyurethane, medical latex, and combinations thereof.
Further, the inner edge of the locking conversion cap bottom plate 461 of the locking conversion cap protrudes downwards to be used for pressing the upper bottom surface of the first pressing ring of the duckbill valve, so that the locking conversion cap bottom plate is in interference connection with the first pressing ring of the duckbill valve, the connection stability between the first sealing assembly and the second sealing assembly is further enhanced, and the air blocking effect of the sealing assembly is guaranteed.
Further, the inner side wall edge of the tight conversion cap outer wall 462 of the locking conversion cap protrudes upwards to be used for compressing the lower bottom surface of the comprehensive sealing valve, so that the locking conversion cap is in interference connection with the comprehensive sealing valve of the comprehensive sealing valve, connection stability between the locking conversion cap and the locking upper cover is enhanced, connection integrity of all components in the first sealing component is promoted, and the air blocking effect in the first sealing component is guaranteed.
The invention respectively strengthens the sealing effect between the integrated sealing valve and the duckbill valve by arranging the flanges on the bottom plate and the outer wall of the locking conversion cap, thereby integrally ensuring the gas blocking effect of the puncture sleeve.
As shown in fig. 24-25, the valve mounting structure of the puncture outfit of the utility model specifically comprises a puncture sleeve seat 11 and an air injection valve 3, wherein the peripheral surface of the puncture sleeve seat 11 is provided with two concave parts 112, the air injection valve 3 is arranged at the outer side of one concave part 112, the air injection valve 3 comprises a valve body 32, a valve core and an air injection pipe 31, the air injection pipe 31 is connected with a mounting cylinder 111 in the concave part 112, and the included angle between the air injection pipe 31 and the mounting cylinder 111 is 65-75 degrees, namely, the air injection pipe 31 of the puncture outfit is obliquely arranged on the concave part 112, firstly, an air injection hose which can be inserted on the air injection pipe 31 is obliquely arranged, and the stress angle is better, namely, the air injection hose is difficult to slide off from the air injection pipe 31, and can be arranged above the air injection pipe in a paraboloid shape, so that a certain gap exists between the air injection hose and the air injection pipe, namely, the flexibility of the puncture sleeve is ensured, and other pipelines on the air injection pipe are convenient to distinguish; secondly, the gas injection pipe 31 is obliquely designed and matched with the concave part 112, so that the gas injection pipe 31 forms a semi-hidden design on the puncture sleeve seat 11, and the problem of mistaken touch on the gas injection valve 3 is not easy to occur unless the gas injection valve 3 is intentionally operated to switch in the use process; the gas injection pipe opening of the gas injection pipe 31 is a universal luer interface and accords with the standard of medical equipment. The valve body 32 is cylindrical and is mounted on the gas injection pipe 31 in a left-right through direction, wherein the left-right through is in a direction opposite to the up-down through direction of the puncture outfit, and the valve body 32 of the gas injection valve 3 is arranged on the puncture seat in a vertically through manner in the prior art; a valve core capable of rotating circumferentially to communicate or block the gas injection pipe 31 is arranged in the valve body 32; the puncture cannula holder 11, the valve body 32 and the gas injection tube 31 are of an integrated structure, so that the puncture cannula holder is high in strength and high in stability, has a good sealing effect in use, and is not easy to generate gas leakage or liquid leakage.
Further, the air injection pipe 31 is installed below the concave part 112, the rib plate 113 is further installed in the area between the upper side of the valve body 32 and the concave part 112, the rib plate 113 is arranged in the middle of the concave part 112, the rib plate 113, the puncture sleeve seat 11, the valve body 32 and the air injection pipe 31 are of an integrated structure, the air injection pipe can be simply realized through an injection molding technology, the design of the rib plate 113 is simple in manufacturing process, the connection strength between the air injection valve 3 and the puncture sleeve seat 11 is higher, the structural stability is better, meanwhile, the rib plate 113 also plays a role of facilitating the hand to hold at the concave part 112, the puncture device is better to hold, and finally the error touch of the air injection valve 3 can be further prevented.
Further, the valve core comprises a valve rod 33 which is arranged in the valve body 32 in a circumferential rotation way, one end of the valve rod 33 is provided with a switch handle 34 positioned at the outer side of the valve body 32, the other end is provided with an inclined cone end 332, and the purpose of the inclined cone end 332 is that the inclined cone end 332 is convenient for the valve rod 33 to be quickly arranged in the valve body 32, so that the valve core is convenient to use and saves cost; a vent hole 35 is provided in the middle of the valve stem 33, and is capable of penetrating the valve stem 33 radially. A circumferential limiting mechanism capable of limiting circumferential rotation of the valve rod 33 is arranged between the valve rod 33 and the valve body 32; the circumferential limiting mechanism comprises an arc notch 321 arranged at the end part of the valve body 32, and the valve rod 33 is provided with an arc limiting block 331 which corresponds to the arc notch 321 and can respectively abut against the end part of the arc notch 321 when the valve rod 33 rotates circumferentially. Namely, when the arc limiting block 331 abuts against one end of the arc notch 321, the vent hole 35 communicates the gas injection pipe 31 with the mounting cylinder 111, and the switch handle 34 is parallel to the gas injection pipe 31; when the arc limiting block 331 abuts against the other end of the arc notch 321, the air vent 35 blocks the air injection pipe 31 from the mounting cylinder 111, the switch handle 34 is perpendicular to the air injection pipe 31, the switch handle 34 is higher than the concave part 1-2cm of the puncture sleeve seat 11 by 1-2cm, and a corresponding operation space is reserved for the operation of the switch handle 34, so that the valve is convenient to open or close, and an anti-slip flange 341 is further arranged on the outer side wall of the switch handle 34, so that the operation is convenient.
Further, a locking upper cover is further arranged on the puncture sleeve seat 11, a limiting groove 413 is further arranged in the locking upper cover, and the limiting groove 413 is arranged on the opposite side of the air injection valve 3; the puncture needle is installed to locking upper cover, and the puncture needle includes puncture needle sealing cap and pjncture needle pole, and the both sides of puncture needle sealing cap also are equipped with sunken flat face, are equipped with stopper 224 on the pjncture needle pole, and stopper 224 installs in the constant head tank 214, and the flat face of location is the upper and lower correspondence setting with the recess position of puncture cannula holder 11. The purpose of this design is to ensure the holding operation of the hand in the recess 112, which is advantageous for convenience of operation.
In a word, the disposable puncture outfit has reasonable design, compact structure, safe and effective use, can greatly reduce the wound area in clinical operation, greatly shorten the operation time, reduce the bleeding and postoperative infection of patients and improve the operation quality.
The assembling process of the puncture outfit comprises the following steps: firstly, installing a duckbill seal valve and a locking lower cover in a second seal assembly on a puncture sleeve seat, and then integrally installing a first seal assembly above the second seal assembly to complete the assembly of the puncture sleeve; then the puncture needle rod and the puncture needle sealing cap are installed and fixed, and the puncture needle is assembled; and finally, penetrating the puncture needles from the central holes of the first sealing assembly and the second sealing assembly in sequence, and penetrating the puncture conical heads at the end parts of the puncture needle rods out of the puncture sleeve to complete the assembly process of the puncture outfit.
The puncture outfit of the invention has the following using process and sealing principle: the sealing device is matched with a disposable puncture outfit, is a minimally invasive endoscopic matched surgical instrument and is suitable for establishing a surgical working channel in the laparoscopic, urinary and gynecological endoscopic and surgical processes. Firstly, a puncture cone head at the front end of a puncture needle of a disposable puncture outfit cuts a small opening in soft tissues of the abdomen of a patient, then the puncture cone head is inserted into the small opening in the soft tissues of the abdomen of the patient, the lower layer of the soft tissues is punctured by the puncture cone, the puncture cone and the bevel surface with taper at the lower part of a puncture sleeve enter the soft tissues together, the puncture cone penetrates through the soft tissues of the abdomen of the patient until reaching the middle part of the abdomen, at the moment, the puncture sleeve penetrates into the abdomen along with the puncture cone, then the puncture needle is pulled out of the puncture sleeve, a valve switch at the upper part of an air injection valve is opened, air is injected into the abdomen of the patient through an air inlet, a valve core and a valve body of the air injection valve, and the air is injected into the abdomen of the patient from the puncture sleeve.
Then the abdominal cavity surgical instrument can be inserted from the first sealing valve and the second sealing valve of the disposable puncture outfit and inserted into the abdominal cavity through the puncture cannula, and the comprehensive sealing valve of the first sealing assembly and the duckbill valve of the second sealing assembly have very good enclasping effect on the surgical instrument, so that the performance of the sealed abdominal cavity surgical instrument is good, gas injected into the abdominal cavity can not leak, and the abdominal cavity surgical instrument has multiple sealing effects.
In the operation process, the first sealing component and the second sealing component of the puncture outfit can be detached and separated, so that the tissue in the operation is rapidly taken out of the duckbill valve, then the first sealing component and the second sealing component are screwed, the operation is continued, the operation instrument is pulled out of the disposable puncture outfit after the operation is finished, the valve switch is opened, the injected gas in the abdominal cavity of the patient is discharged from the exhaust port of the gas injection valve, and after the injected gas is discharged, the disposable puncture outfit can be pulled out of the abdominal cavity of the patient, so that the operation process is completed.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be the communication between the two parts. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art in a specific case.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (2)
1. A puncture cannula device for a laparoscopic puncture outfit, characterized in that the puncture cannula comprises a puncture cannula body and a two-stage sealing device, the puncture cannula body comprises a puncture cannula seat and a cannula, the two-stage sealing device is arranged above the puncture cannula seat, and the cannula is arranged below the puncture cannula seat; an air injection valve is arranged on the side wall of the puncture sleeve seat and is integrated with the puncture sleeve;
the two-stage sealing device comprises a first sealing component and a second sealing component; the first sealing component is positioned above the second sealing component; the first sealing assembly comprises a locking upper cover, a supporting ring, a supporting sheet, a comprehensive sealing valve, an interval locking ring and a locking conversion cap, wherein the supporting ring, the supporting sheet, the comprehensive sealing valve and the interval locking ring are arranged between the locking upper cover and the locking conversion cap, the supporting ring and the supporting sheet are arranged in the comprehensive sealing valve, and the interval locking ring is arranged below the comprehensive sealing valve; the second sealing assembly comprises a locking lower cover and a duckbill sealing valve, and the duckbill sealing valve is arranged in the locking lower cover; the first sealing component and the second sealing component are fixedly installed through the connection of the locking conversion cap and the locking lower cover;
A locking conversion mechanism is arranged among the locking upper cover, the locking conversion cap and the locking lower cover, a clamping locking block is arranged on the outer wall of the locking conversion cap, a clamping locking groove is arranged on the inner wall of the locking upper cover, and the clamping locking block is correspondingly arranged in the clamping locking groove; the lower part of the locking conversion cap is provided with a mortise lock body, the upper part of the locking lower cover is provided with a mortise lock groove, and the mortise lock body is arranged in the mortise lock groove;
the clamping locking block comprises a transverse locking block and a vertical locking block, a transverse locking groove and a vertical locking groove are formed in the locking upper cover, the transverse locking block is installed in the transverse locking groove, and the vertical locking block is installed in the vertical locking groove; the lock body is an L-shaped arc plate, the number of the L-shaped arc plates is two, and the L-shaped arc plates are uniformly distributed at the lower part of the locking conversion cap; the mortise lock groove comprises a plug-in rotary groove and a plug-in clamping groove, and the plug-in rotary groove is communicated with the plug-in clamping groove; the upper part of the plugging clamping groove is also provided with a plugging clamping plate;
the comprehensive sealing valve comprises a conical sealing valve and a wavy sealing ring, the supporting sheet is arranged in the conical sealing valve, and the supporting ring is arranged above the supporting sheet; the upper part of the supporting sheet is provided with a plurality of connecting columns, and the supporting ring is provided with connecting holes which are matched and connected with the connecting columns; the wavy sealing ring comprises an outer edge skirt edge and an inner edge skirt edge, and the outer edge skirt edge is tightly pressed between the locking upper cover and the locking conversion cap; the cross section of the outer edge skirt is L-shaped, and the top of the long edge of the L-shaped skirt is triangular; a spacing ring is arranged between the inner edge skirt edge and the conical sealing valve; the interval locking ring is arranged on the periphery of the interval ring; the section shape of the spacing ring is h-shaped; the interval locking ring comprises an interval locking seat and an interval locking piece, the interval locking seat is correspondingly clamped with a clamping groove at the h-shaped lower part of the interval ring, the interval locking seat is positioned on a bottom plate of the locking conversion cap, and the interval locking piece is arranged in the clamping groove between the interval ring and the inner edge skirt; the upper opening of the interval locking piece is in a closing shape;
The second sealing component is arranged above the puncture sleeve seat, specifically, a first compression ring and a second compression groove are sequentially arranged on the upper part of the duckbill sealing valve, the first compression ring is correspondingly arranged in the connecting seat in the locking lower cover, and the second compression groove is correspondingly arranged in the mounting cylinder in the puncture sleeve seat;
the outer peripheral wall of the upper part of the puncture sleeve seat is also provided with a transverse clamping groove and a vertical clamping slot, and the inner peripheral wall of the locking lower cover is correspondingly provided with a transverse clamping block and a vertical clamping strip; the transverse clamping block is arranged in the transverse clamping groove, the vertical clamping strip is arranged in the vertical clamping slot;
the lower part of the locking lower cover is also provided with a clamping arc plate which is correspondingly arranged below the inserting rotary groove; a compression flange is arranged outside the second compression groove and is arranged in a gap between the clamping arc plates; the bottom surface of the first compression ring is an inclined surface, and the outer side edge of the inclined surface is lower than the inner side edge of the inclined surface.
2. The puncture cannula device for the laparoscopic puncture outfit according to claim 1, wherein the circumference of the puncture cannula seat is provided with two concave parts, an air injection valve is arranged on the outer side of one concave part, the air injection valve comprises a valve body, a valve core and an air injection pipe, the air injection pipe is connected with a mounting cylinder in the concave part, and an included angle between the air injection pipe and the mounting cylinder is 65-75 degrees; the valve body is cylindrical and is arranged on the gas injection pipe in a left-right through direction; a valve core capable of rotating circumferentially to communicate or block the gas injection pipe is arranged in the valve body; the puncture cannula seat, the valve body and the gas injection pipe are of an integrated structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810201518.XA CN108309412B (en) | 2018-03-12 | 2018-03-12 | Puncture sleeve device for laparoscopic puncture outfit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810201518.XA CN108309412B (en) | 2018-03-12 | 2018-03-12 | Puncture sleeve device for laparoscopic puncture outfit |
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| Publication Number | Publication Date |
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| CN108309412A CN108309412A (en) | 2018-07-24 |
| CN108309412B true CN108309412B (en) | 2024-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810201518.XA Active CN108309412B (en) | 2018-03-12 | 2018-03-12 | Puncture sleeve device for laparoscopic puncture outfit |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109009347B (en) * | 2018-07-31 | 2024-04-05 | 德清朗特医疗科技有限公司 | Puncture needle and puncture device |
| CN109288569B (en) * | 2018-09-29 | 2019-10-25 | 江苏风和医疗器材股份有限公司 | A kind of puncture outfit shell and puncture outfit |
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| WO2014187093A1 (en) * | 2013-05-24 | 2014-11-27 | Ma Boping | Puncture outfit with relatively good sealing performance |
| CN103519852A (en) * | 2013-10-10 | 2014-01-22 | 程张军 | Casing pipe puncture outfit |
| CN104799911A (en) * | 2014-01-29 | 2015-07-29 | 伊西康内外科公司 | Puncture apparatus |
| CN203777016U (en) * | 2014-02-28 | 2014-08-20 | 无锡市舒康医疗器械有限公司 | Disposable puncture device |
| CN103892892A (en) * | 2014-03-01 | 2014-07-02 | 杭州康基医疗器械有限公司 | Improved puncture outfit |
| CN104546080A (en) * | 2015-01-28 | 2015-04-29 | 联合微创医疗器械（深圳）有限公司 | Fully-separable puncture outfit |
| CN104799912A (en) * | 2015-04-08 | 2015-07-29 | 安徽奥弗医疗设备科技股份有限公司 | Telescopic sealing element for puncture outfit for laparoscope |
| CN104799914A (en) * | 2015-04-08 | 2015-07-29 | 安徽奥弗医疗设备科技股份有限公司 | Thin sealing membrane film of puncture outfit for laparoscope |
| CN105559860A (en) * | 2016-03-14 | 2016-05-11 | 无锡市瑞源普斯医疗器械有限公司 | Disposable puncture outfit |
| CN205548647U (en) * | 2016-03-14 | 2016-09-07 | 无锡市瑞源普斯医疗器械有限公司 | Disposable puncture outfit |
| CN107049378A (en) * | 2017-06-03 | 2017-08-18 | 成都五义医疗科技有限公司 | A kind of thimble assembly containing hook-shaped air bag |
| CN107080578A (en) * | 2017-06-03 | 2017-08-22 | 成都五义医疗科技有限公司 | One kind includes single seal assembly and polysleeve puncture product bag and its application method |
| CN107115136A (en) * | 2017-06-12 | 2017-09-01 | 常州艾隆精密机械有限公司 | A kind of abdominal cavity puncture outfit |
| CN208610948U (en) * | 2018-03-12 | 2019-03-19 | 天津青松华药医药有限公司 | A kind of puncture cannula for laparoscope puncture outfit |
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