CN104958093A - Puncture device for laparoscopic operation - Google Patents
Puncture device for laparoscopic operation Download PDFInfo
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- CN104958093A CN104958093A CN201510200947.1A CN201510200947A CN104958093A CN 104958093 A CN104958093 A CN 104958093A CN 201510200947 A CN201510200947 A CN 201510200947A CN 104958093 A CN104958093 A CN 104958093A
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- conical surface
- wall section
- thinner wall
- sector notch
- elastic sealing
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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
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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
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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
- A61B2017/3419—Sealing means between cannula and body
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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- Heart & Thoracic Surgery (AREA)
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Abstract
The invention relates to a puncture device for a laparoscopic operation. Each elastic sealing piece of the puncture device comprises a conical cone thin wall part and an annular part connected to the bottom of the cone thin wall part; a sector notch is formed in each cone thin wall part; at least the wall thickness of the edge of the top end of each sector notch is smaller than the thicknesses of the remaining parts of the corresponding cone thin wall part; and/or at least the wall thicknesses of the area, opposite to the corresponding sector notch, on each cone thin wall part are gradually decreased from the bottom to the top end of the cone thin wall part. In the puncture device, at least the wall thickness of the edge of the top end of each sector notch is smaller, so that the edges of the top ends are better attached to a puncture rod or other operation instruments in a tightly-wrapping manner, tension on the edges of the top ends of the multiple elastic sealing pieces is evenly distributed, the phenomenon that due to uneven tension distribution, upheaval of exceptional edges of the top ends occurs is avoided, and the better wrapping performance and the better gas tightness are achieved.
Description
Technical field
The present invention relates to a kind of Minimally Invasive Surgery apparatus, particularly relate to the good perforator of the sealing property used in laparoscopic surgery.
Background technology
Perforator a kind ofly pierces through stomach wall and provide the operating theater instruments entering lumenal passageway for other operating theater instruments, belongs to a kind of Minimally Invasive Surgery apparatus.
Perforator generally includes as the sleeve assembly of other operating theater instruments admission passages with through the puncturing lever in described sleeve assembly.In order to transdermal, first cut epiderm skin with scalpel, then puncturing lever transdermal enter body cavity.Apply pressure by the near-end to described puncturing lever, promote the tip of described puncturing lever through skin, until perforator enters body cavity, extract puncturing lever out, sleeve assembly just can as the mis instruments passage performing endo-surgical and splanchnoscopy operation.
Sleeve assembly is used for various apparatus and instrument to introduce intraperitoneal, and provides aeration that stomach wall is elevated to above organ.At this kind of intra-operative, insert sniffer (such as, endoscope or peritoneoscope) by sleeve assembly, in the external monitor being connected to sniffer, observe operation process to allow surgeon.
At intra-operative, for stoping intraperitoneal Leakage Gas, prior art have employed a kind of perforator, and the top of its sleeve assembly has a housing, is provided with instrument black box in this housing, it comprises a pair stiffening ring, and multiple separate be pressed in this to the flexible seals between ring, each elastic sealing element has the circumference of 180 ° to 270 ° and builds up layer together each other, to form conical sealing member, and be suitable for the operating theater instruments of black box described in hermetically passing, to stop intraperitoneal Leakage Gas.
Above-mentioned the deficiencies in the prior art part is: the sealing property of above-mentioned black box is lower, and when the outer draught head of intraperitoneal is greater than 4KPa, gas leakage obviously; Meanwhile, when draught head is at 2KPa outside intraperitoneal, also there is the situation of chronic leakage.
Summary of the invention
Technical problem to be solved by this invention is to provide the laparoscopic surgery perforator of a kind of structure simply, between black box and operating theater instruments.
In order to solve the problem, the invention provides a kind of laparoscopic surgery perforator, comprising: black box, sealing assembly comprises multiple elastic sealing element; Each elastic sealing element comprises: conically conical surface thinner wall section and the ring part be connected to bottom this conical surface thinner wall section; Conical surface thinner wall section is provided with sector notch, and the top of this sector notch is the top of described conical surface thinner wall section, and curved angle; As the first scheme, the wall thickness of the tip edge of at least described sector notch on described sector notch edge is less than the remainder of described conical surface thinner wall section; The wall thickness of the remainder of described conical surface thinner wall section is consistent.Or, as first scheme, in described conical surface thinner wall section at least in the region relative with described sector notch, from bottom conical surface thinner wall section to the wall thickness on top by thick thinning gradually.
Above-mentioned first scheme, can implement, namely form the third scheme on the basis of the first scheme above-mentioned.
Above-mentioned first or the third scheme in the specific implementation, on the outward flange of described sector notch or at least, on the outward flange on described top, there is chamfering, with the remainder making the wall thickness of at least described tip edge be less than described conical surface thinner wall section.Described edge also can be the edge that thickness is even, wall thickness is thinner than the remainder of described conical surface thinner wall section.
On the basis of above-mentioned each scheme, preferred scheme is, the outer wall of described conical surface thinner wall section is provided with at least one ring stiffener coaxially distributed with this conical surface thinner wall section or band, this reinforcement or bring and have corresponding breach at described sector notch place.Ring stiffener or annular reinforcing band, can prevent puncturing lever or other operating theater instruments insert black box and occur indivedual elastic sealing element stressed excessive time, described ring stiffener or band can control the deflection of above-mentioned indivedual elastic sealing elements, prevent its excessive deformation and damage, increasing the tear resistance of conical surface thinner wall section.In addition, the ring stiffener coaxially distributed with described conical surface thinner wall section or band, be beneficial to the sealing property improved between elastic sealing element that is adjacent, lamination each other.
On the basis of above-mentioned first scheme, preferred scheme is, in described whole conical surface thinner wall section, from bottom conical surface thinner wall section to the wall thickness on top by thick gradually thinning (wall thickness bottom conical surface thinner wall section be close on its top end 1.5-3 doubly), the shape of above-mentioned elastic sealing element, structure, in conjunction with the thinning gradually mode of wall thickness, be suitable for making the gluing, sealing between the elastic sealing element of adjacent laminating tightr, make the stress reasonable layout in described conical surface thinner wall section, gas leakage or sepage is there is to prevent local eminence, closely be wrapped in puncturing lever or other operating theater instruments to be beneficial to described conical surface thinner wall section further, parcel between further raising black box and puncturing lever or other operating theater instruments and air-tightness.
On the basis of above-mentioned each scheme, further preferably: the bottom of the conical surface thinner wall section of each elastic sealing element has the circumference being not less than 180 °, or the circumference of 300 ° to 340 °.The tip edge of described sector notch is circular arc; Described ring part is provided with the base breach relative with described sector notch; The width of this base breach is less than the bottom width of described sector notch, and base breach is just to the central authorities of described sector notch, with while the lower circumference of the conical surface thinner wall section of fixing each elastic sealing element, fix the position of the radial edges of the sector notch of each elastic sealing element as far as possible, the sector notch guaranteeing on the adjacent spring sealing member of lamination can stagger enough angles, avoid producing leakage path between adjacent sector notch, finally ensure that the sealing between adjacent spring sealing member.
On the basis of above-mentioned each scheme, preferred scheme is further: this perforator also comprises: sleeve assembly, and described black box is located in the housing at this sleeve assembly top; Described black box also comprises a pair stiffening ring, and each elastic sealing element is located at this between ring; The ring part of each elastic sealing element builds up layer each other together, to make the conical surface thinner wall section of each elastic sealing element form conical sealing member, and then makes to be sealed and matched through the operating theater instruments of described black box and sealing component activity.The housing at described sleeve assembly top comprises: the switch cap that upper-lower seal coordinates and receiver; Described black box is located on the service aisle in switch cap.
On the basis of above-mentioned each scheme, described receiver comprises: bowl bodies, be longitudinally connected to this bowl bodies bottom center and with the cylindrical shell of this bowl bodies one, seal the annular cover plate being fixed on this bowl bodies top, and be located at the plug valve on this bowl bodies sidewall; Plug valve is used for allowing and stop perfusion of fluid entered by cylindrical shell or discharge body cavity; The lateral wall of described annular cover plate is evenly distributed with at least two for arranging the mounting groove of three-back-shaped snap close; The medial wall of three-back-shaped snap close is provided with spring; The end face of described annular cover plate is distributed with the interface with described mounting groove up/down perforation; The bottom of described switch cap is extended with multiple dead bolt for inserting described interface respectively downwards, the inner side of this dead bolt has locked groove, after this dead bolt is successively through the through hole on described interface, three-back-shaped snap close, under the effect of described spring, described locked groove secure fit is in the through hole of described three-back-shaped snap close, and then it is fixing that switch cap and receiver are patched.
On the basis of above-mentioned each scheme, the service aisle in the bowl bodies of described receiver is provided with air shuttle valve; This air shuttle valve comprises the inner cup portion that elastomeric material is made, and the bottom surface of this inner cup portion is plane, and these bottom surface central authorities are provided with cross-formed slits; The sidewall of this inner cup portion is provided with four relative with four angles of described cross-formed slits respectively arcuate grooves; Described operating theater instruments is adapted to pass through described cross-formed slits, and the bottom surface of this inner cup portion is suitable for when not having operating theater instruments to pass sealing described service aisle, prevents from being thus delivered to leaking of the perfusion gas of body cavity by plug valve, cylindrical shell.
During use, the gas pressure in inner cup portion is on four arcuate grooves and extrude four angles of described cross-formed slits, makes described cross-formed slits close when not having operating theater instruments to pass, and then sealing; When operating theater instruments is through described cross-formed slits, described service aisle realizes sealing by described black box.Underrun cross-formed slits and the cylindricality operating theater instruments of this inner cup portion are slidably matched, and relative to the slit type structure of duck-beak type air shuttle valve, material deformation is little, and the resistance acted on accordingly in operating theater instruments reduces.
The degree of depth of each arcuate groove, increases from top to bottom gradually, to make the action effect of the pressure of four angles of the described cross-formed slits of extruding better, and then improves sealing effectiveness.Described four arcuate groove centrosymmetry distribution, to make the pressure uniform of four angles of the described cross-formed slits of extruding.
Preferred scheme is further: the top of described inner cup portion has integrated flange, this flange is used for coordinating with the center through hole of the annular cover plate of described receiver and the sealed bottom of switch cap, coordinates with receiver upper-lower seal to make described switch cap.
Further preferred scheme is: this perforator also comprises through the puncturing lever in described sleeve assembly, and this puncturing lever comprises the rod body part of ABS material and is connected to the head of PC material of this rod body part end.Relative to the metal rod body part of employing, the present invention has the higher feature of with low cost, simple process, safety.
The present invention has positive effect relative to prior art:
(1) perforator of the present invention is relative to prior art, and without strengthening pad part in described conical surface thinner wall section, corresponding production technology is easier, materials are less; In addition, in prior art elastic sealing element, the most easily there is the position of gas leakage or sepage, be in the tip edge of described sector notch.In the present invention, the wall thickness of at least described tip edge on described sector notch edge is thinner, the air pressure that intraperitoneal is larger is suitable for extruding described tip edge, be beneficial to described tip edge closely to wrap up, be fitted in puncturing lever or other operating theater instruments, and be beneficial to the even tension distribution of the tip edge on described multiple elastic sealing element, avoid occurring that because tension distribution is uneven the situation of protuberance occurs indivedual tip edge, therefore there is better parcel property and air-tightness; Through emulation experiment, even if the difference of Intraabdominal air pressure and ambient pressure reaches 8KPa, there is not the situation (namely 5 minutes, intraperitoneal external differential amplitude of variation is within 5%) of obviously gas leakage or sepage yet.Reach 4KPa at intraperitoneal external differential, also there is not the situation (namely in half an hour, intraperitoneal external differential amplitude of variation is within 5%) of chronic leakage or sepage.
(2), in the black box of perforator of the present invention, the bottom of the conical surface thinner wall section of elastic sealing element has the circumference being not less than 180 °, is preferably not less than 270 °; When the circumference of employing 300 ° to 340 °, correspondingly, on described elastic sealing element, sector notch is just less, the technique effect of its corresponding generation is: when performing the operation, operating theater instruments is through after described black box, and the radial edges of the sidewall of operating theater instruments and the sector notch of each elastic sealing element is wrapped up tightr, and then improves sealing property, even if the outer draught head of intraperitoneal reaches 8.5KPa, there is not the situation of obviously gas leakage yet.In addition, if the lower circumference of the conical surface thinner wall section of described elastic sealing element is greater than 340 °, operating theater instruments then can be caused to insert difficulty, and the radial edges modification simultaneously causing the sector notch of described elastic sealing element is comparatively large, and then the sealing between the adjacent spring sealing member affecting lamination.If the lower circumference of the conical surface thinner wall section of described elastic sealing element is less than 300 °, then the parcel power of the radial edges of the sidewall of operating theater instruments and the sector notch of each elastic sealing element dies down gradually;
(3) housing at sleeve assembly top of the present invention comprises: the switch cap that upper-lower seal coordinates and receiver; Relative to integrative-structure, the advantage of this Split type structure: be beneficial in operation process, changes in time according to practical situation or clears up switch cap; Meanwhile, in operation process, the bowl bodies of receiver can be cleared up.In addition, once one of switch cap and receiver are damaged, remaining parts can with another organize perforator with the use of, be beneficial to saving; Switch cap of the present invention and receiver patch fit structure, have easy to use, the feature that reliability is higher;
(4) the bottom surface central authorities of air shuttle valve of the present invention are provided with cross-formed slits; The sidewall of this inner cup portion is provided with four relative with four angles of described cross-formed slits respectively arcuate grooves; During use, gas pressure in inner cup portion is on four arcuate grooves and extrude four angles of described cross-formed slits, make described cross-formed slits close when not having operating theater instruments to pass, and then sealing is when operating theater instruments is through described cross-formed slits, described service aisle realizes sealing by described black box.
Accompanying drawing explanation
In order to clearly demonstrate innovative principle of the present invention and the technical advantage compared to existing product thereof, by applying the limiting examples of described principle, a possible embodiment is described by means of accompanying drawing below.In the drawings:
Figure 1A is the structural representation of perforator of the present invention;
Figure 1B is the top view of perforator of the present invention;
Fig. 1 C is the A-A sectional structure chart of the perforator in Figure 1A;
Fig. 1 D is the B-B sectional structure chart of the perforator in Figure 1A;
Fig. 1 E is the axonometric chart of perforator of the present invention;
Fig. 1 F is the sectional structure chart of the housing parts of perforator of the present invention;
Fig. 1 G is the switch cap sectional structure chart in perforator of the present invention;
Fig. 2 is the decomposition texture schematic diagram of perforator of the present invention;
Fig. 3 A is the top view of receiver of the present invention;
Fig. 3 B is the C-C sectional structure chart of receiver of the present invention;
Fig. 3 C is the D-D sectional structure chart of receiver of the present invention;
Fig. 4 A is the structural representation of air shuttle valve of the present invention;
Fig. 4 B is the right view of the air shuttle valve in Fig. 4 A;
Fig. 4 C is the axonometric chart of the air shuttle valve in Fig. 4 A;
Fig. 4 D is the left view of the air shuttle valve in Fig. 4 A;
Fig. 5 A is the structural representation of elastic sealing element of the present invention;
Fig. 5 B is the upward view of the elastic sealing element in Fig. 5 A;
Fig. 5 C is the axonometric chart of the elastic sealing element in Fig. 5 A;
Fig. 5 D is the E-E cross-sectional view of the elastic sealing element in Fig. 5 B;
Fig. 5 E is another structural representation of the E-E section of elastic sealing element in Fig. 5 B;
Fig. 6 A is the structural representation of another kind of elastic sealing element of the present invention;
Fig. 6 B is the top view of Fig. 6 A;
Fig. 7 A is the structural representation of the third elastic sealing element of the present invention;
Fig. 7 B is the top view of Fig. 7 A;
Fig. 8 is the structural representation of the 4th kind of elastic sealing element of the present invention.
Detailed description of the invention
Embodiment 1
See Fig. 1 to 4, the perforator of the present embodiment, comprising: sleeve assembly 1, and the housing 2 at this sleeve assembly top comprises: the switch cap 2-1 that upper-lower seal coordinates and receiver 2-2; Described receiver 2-2 comprises: bowl bodies 2-20, be longitudinally connected to this bowl bodies 2-20 bottom center and with the cylindrical shell 2-21 of this bowl bodies 2-20 one, seal the annular cover plate 2-22 being fixed on this bowl bodies 2-20 top, and be located at the plug valve 4 on this bowl bodies 2-20 sidewall.This plug valve 4 is for allowing and stoping perfusion of fluid to be entered by cylindrical shell 2-21 or to discharge body cavity;
The central axis of switch cap 2-1 and receiver 2-2 is provided with the service aisle 10 for wearing operating theater instruments or puncturing lever; One black box 3 is located on the service aisle in switch cap 2-1, is provided with protector 6 above black box 3.
As Fig. 2, Fig. 5 A to 5C, described black box 3 comprises a pair stiffening ring 3-1, and 3 to 6 (preferably 4) are located at this to the elastic sealing element 3-2 between ring 3-1; Each elastic sealing element 3-2 comprises: conically conical surface thinner wall section 3-21 and the ring part 3-22 be connected to bottom this conical surface thinner wall section 3-21; Conical surface thinner wall section 3-21 is provided with sector notch 3-20, and the top of this sector notch 3-20 is the tip edge 3-24 of described conical surface thinner wall section 3-21, and the ring part 3-22 of each elastic sealing element 3-2 builds up layer each other together, to make the conical surface thinner wall section 3-21 of each elastic sealing element 3-2 form conical sealing member, and then the operating theater instruments through described black box 3 is coordinated with sealing assembly 3 movable sealing; The bottom of the conical surface thinner wall section of each elastic sealing element 3-2 has the circumference of 300 ° to 340 ° (preferably 320 °).
Described ring part 3-22 is provided with the base breach 3-220 relative and through with described sector notch 3-20; Described ring part 3-22 is also evenly distributed with the hole 3-23 on the pin for being located on a pair described stiffening ring 3-1, with fixing each elastic sealing element 3-2.
As Fig. 5 A, the width of described base breach 3-220 is less than the bottom width of described sector notch 3-20, and base breach 3-220 is just to the central authorities of described sector notch 3-20, with while the lower circumference of the conical surface thinner wall section of fixing each elastic sealing element 3-2, fix the position of the radial edges of the sector notch 3-20 of each elastic sealing element 3-2 as far as possible, the sector notch 3-20 guaranteeing on the adjacent spring sealing member 3-2 of lamination can stagger enough angles, avoid producing leakage path between adjacent sector notch 3-20, finally ensure that the sealing between adjacent spring sealing member 3-2.
On described sector notch 3-20 edge or be at least the remainder that the wall thickness of described tip edge 3-24 is less than described conical surface thinner wall section 3-21.The wall thickness of the remainder of described conical surface thinner wall section 3-21 is consistent; During concrete enforcement, on the outward flange of described sector notch 3-20 or described tip edge 3-24(as Fig. 5 D) and/or this tip edge 3-24 contiguous outward flange 3-30 on there is chamfering 3-29(as Fig. 5 E), be less than 1/2 of the remainder of described conical surface thinner wall section to make the thinnest part of the wall thickness of described respective outer edges.
As the optional scheme of another kind, described tip edge also can be the edge that thickness is even, wall thickness is thinner than the remainder of described conical surface thinner wall section 3-21, and the thickness of this tip edge is 1/2 to 1/4 of the remainder of described conical surface thinner wall section.
The technique effect of its corresponding generation is: sector notch less (namely the bottom of the conical surface thinner wall section of each elastic sealing element 3-2 has the circumference of 300 ° to 340 °) on the described elastic sealing element of the present embodiment, when performing the operation, operating theater instruments is through after described black box 3, the radial edges of the sidewall of operating theater instruments and the sector notch 3-20 of each elastic sealing element 3 is wrapped up tightr, and then improves sealing property; In addition, relative to prior art, without strengthening pad part in described conical surface thinner wall section, corresponding production technology is easier, materials are less; In addition, in prior art elastic sealing element, the most easily there is the position of gas leakage or sepage, be in the described tip edge of described sector notch.In the present embodiment, the edge wall thickness of described sector notch is thinner, or the wall thickness of at least described tip edge is thinner, the air pressure that intraperitoneal is larger is suitable for extruding described tip edge, be beneficial to described tip edge to wrap up more closely, be fitted in puncturing lever or other operating theater instruments, and be beneficial to the even tension distribution of the tip edge on described multiple elastic sealing element, avoid occurring that because tension distribution is uneven the situation of protuberance occurs indivedual tip edge, therefore there is better parcel property and air-tightness; Through emulation experiment, even if the outer draught head of intraperitoneal reaches 8KPa, there is not the situation (namely 5 minutes, intraperitoneal external differential amplitude of variation is within 5%) of obviously gas leakage or sepage yet.Reach 4KPa at intraperitoneal external differential, also there is not the situation (i.e. half an hour, intraperitoneal external differential amplitude of variation is within 5%) of chronic leakage or sepage.
As Fig. 2, the lateral wall of described annular cover plate 2-22 is evenly distributed with at least two for arranging the mounting groove 2-26 of three-back-shaped snap close 2-23; The medial wall of three-back-shaped snap close 2-23 is provided with spring 2-24; The end face of described annular cover plate 2-22 is distributed with the interface 2-25 with described mounting groove 2-26 up/down perforation; The bottom of described switch cap 2-1 is extended with multiple dead bolt 2-11 for inserting described interface 2-25 respectively downwards, the inner side of this dead bolt 2-11 has locked groove 2-12, after this dead bolt 2-11 is successively through the through hole 2-27 on described interface 2-25, three-back-shaped snap close 2-23, under the effect of described spring 2-24, described locked groove 2-12 secure fit is in the through hole 2-27 of described three-back-shaped snap close 2-23.
As Fig. 4, the service aisle in the bowl bodies 2-20 of described receiver 2-2 is provided with air shuttle valve 7; This air shuttle valve 7 comprises the inner cup portion 71 that elastomeric material is made, and the bottom surface 72 of this inner cup portion 71 is plane, and these bottom surface 72 central authorities are provided with cross-formed slits 73; The sidewall of this inner cup portion 71 is provided with four relative with four angles of described cross-formed slits respectively arcuate grooves 74; Described operating theater instruments is adapted to pass through described cross-formed slits 73, and the bottom surface 72 of this inner cup portion is suitable for when not having operating theater instruments to pass sealing described service aisle 10, prevents from being thus delivered to leaking of endoceliac perfusion gas by plug valve 4, cylindrical shell 2-21.
During use, gas pressure in inner cup portion 71 is on four arcuate grooves 74 and extrude four angles of described cross-formed slits 73, make described cross-formed slits 73 close when not having operating theater instruments to pass, and then sealing is when operating theater instruments is through described cross-formed slits 73, described service aisle realizes sealing by described black box 3.Elastic sealing element 3-2 and air shuttle valve 7 adopt rubber to make.
The top of described inner cup portion 71 has integrated flange 75, this flange 75 coordinates for the center through hole of the annular cover plate 2-22 with described receiver 2-2 and the sealed bottom of switch cap 2-1, coordinates with receiver 2-2 upper-lower seal to make described switch cap 2-1.
This perforator also comprises through the puncturing lever in described sleeve assembly, and this puncturing lever comprises the rod body part of ABS material and is connected to the head of PC material of this rod body part end.Relative to the metal rod body part of employing, the present invention has the higher feature of with low cost, simple process, safety.
Relative to integrative-structure, housing 22 of the present invention adopts Split type structure, is beneficial in operation process, changes in time or clear up switch cap 2-1 according to practical situation; Meanwhile, in operation process, the bowl bodies 2-20 of receiver 2-2 can be cleared up.In addition, once one of switch cap 2-1 and receiver 2-2 are damaged, remaining parts can with another organize perforator with the use of, be beneficial to saving.
Embodiment 2
On the basis of embodiment 1, there is following modification in the present embodiment:
As Fig. 6 A and 6B, the outer wall of described conical surface thinner wall section 3-21 is provided with ring stiffener 3-25 and 3-26(that coaxially distribute with this conical surface thinner wall section as Fig. 6 A and 6B), or the outer wall of described conical surface thinner wall section 3-21 is provided with the annular reinforcing band 3-27(that coaxially distributes with this conical surface thinner wall section as Fig. 7 A and 7B), this reinforcement or bring, at described sector notch place, there is corresponding breach.
Ring stiffener or annular reinforcing band can make conical surface thinner wall section be wrapped in puncturing lever or other operating theater instruments more closely, also namely there is better parcel property, even if there is local eminence in the remainder of described conical surface thinner wall section, also do not affect air-tightness, make the air-tightness between black box and puncturing lever or other operating theater instruments better; In addition, ring stiffener or annular reinforcing band, can prevent puncturing lever or other operating theater instruments insert black box and occur indivedual elastic sealing element stressed excessive time, described ring stiffener or band can control the deflection of above-mentioned indivedual elastic sealing elements, prevent its excessive deformation and damage, increasing the tear resistance of conical surface thinner wall section.
In addition, the ring stiffener coaxially distributed with described conical surface thinner wall section or band, be beneficial to the sealing property improved between elastic sealing element that is adjacent, lamination each other.
Through emulation experiment, even if the outer draught head of intraperitoneal reaches 8.5KPa, there is not the situation (namely 5 minutes, intraperitoneal external differential amplitude of variation is within 5%) of obviously gas leakage or sepage in described black box yet.Reach 5KPa at intraperitoneal external differential, also there is not the situation (namely in half an hour, intraperitoneal external differential amplitude of variation is within 5%) of chronic leakage or sepage.
Embodiment 3
On the basis of embodiment 1 or 2, there is following modification in the present embodiment:
As Fig. 8, the region 3-28(relative with described sector notch 3-20 on described conical surface thinner wall section 3-21 it comprise described tip edge 3-24), from the wall thickness on bottom to the top of conical surface thinner wall section 3-21 by thick gradually thinning (wall thickness bottom conical surface thinner wall section be close on its top end 1.5-3 doubly), the wall thickness of the remainder of described conical surface thinner wall section 3-21 is consistent with the bottom of conical surface thinner wall section 3-21, this structure is suitable for preventing local eminence, being beneficial to described conical surface thinner wall section entirety is closely wrapped in puncturing lever or other operating theater instruments, to improve the air-tightness between black box and puncturing lever or other operating theater instruments.
The thickness transitions of the remainder of described region 3-28 and described conical surface thinner wall section 3-21 is gradual change, level and smooth, this structure is beneficial to the tight entirety of described conical surface thinner wall section and is wrapped in puncturing lever or other operating theater instruments, improves further the air-tightness between black box and puncturing lever or other operating theater instruments.
Through emulation experiment, even if the outer draught head of intraperitoneal reaches 8.5KPa, there is not the situation (namely 5 minutes, intraperitoneal external differential amplitude of variation is within 5%) of obviously gas leakage or sepage in described black box yet.Reach 5KPa at intraperitoneal external differential, also there is not the situation (i.e. half an hour, intraperitoneal external differential amplitude of variation is within 5%) of chronic leakage or sepage.
Embodiment 4
On the basis of embodiment 1 or 2, there is following modification in the present embodiment:
As Fig. 8, on described conical surface thinner wall section 3-21, overall by thick thinning (wall thickness bottom conical surface thinner wall section is 1.5-3 times that closes on its top end) gradually from the wall thickness on bottom to the top of conical surface thinner wall section 3-21, the shape of elastic sealing element 3-2, structure, in conjunction with the gradual manner of wall thickness, be suitable for making the gluing, sealing between the elastic sealing element 3-2 of adjacent laminating tightr, prevent local eminence and gas leakage or sepage occur, be beneficial to described conical surface thinner wall section entirety is wrapped in puncturing lever or other operating theater instruments simultaneously more closely, to improve the air-tightness between black box and puncturing lever or other operating theater instruments.
Through emulation experiment, even if the outer draught head of intraperitoneal reaches 8.8KPa, there is not the situation (namely 5 minutes, intraperitoneal external differential amplitude of variation is within 5%) of obviously gas leakage or sepage in described black box yet.Reach 5.2KPa at intraperitoneal external differential, also there is not the situation (i.e. half an hour, intraperitoneal external differential amplitude of variation is within 5%) of chronic leakage or sepage.
Obviously, above-described embodiment is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And these belong to spirit institute's apparent change of extending out of the present invention or change and are still among protection scope of the present invention.
Claims (8)
1. a perforator, comprises black box and sleeve assembly, and sealing assembly comprises multiple elastic sealing element; Each elastic sealing element comprises: conically conical surface thinner wall section and the ring part be connected to bottom this conical surface thinner wall section; Conical surface thinner wall section is provided with sector notch; It is characterized in that:
Described black box is located in the housing at this sleeve assembly top; Described black box also comprises a pair stiffening ring, and each elastic sealing element is located at this between ring; The ring part of each elastic sealing element builds up layer each other together, to make the conical surface thinner wall section of each elastic sealing element form conical sealing member, and then makes to be sealed and matched through the operating theater instruments of described black box and sealing component activity;
The housing at described sleeve assembly top comprises: the switch cap that upper-lower seal coordinates and receiver;
Described receiver comprises: bowl bodies, be longitudinally connected to this bowl bodies bottom center and with the cylindrical shell of this bowl bodies one, seal the annular cover plate being fixed on this bowl bodies top, and be located at the plug valve on this bowl bodies sidewall; Plug valve is used for allowing and stop perfusion of fluid entered by cylindrical shell or discharge body cavity;
The lateral wall of described annular cover plate is evenly distributed with at least two for arranging the mounting groove of three-back-shaped snap close; The medial wall of three-back-shaped snap close is provided with spring;
The end face of described annular cover plate is distributed with the interface with described mounting groove up/down perforation;
The bottom of described switch cap is extended with multiple dead bolt for inserting described interface respectively downwards, the inner side of this dead bolt has locked groove, after this dead bolt is successively through the through hole on described interface, three-back-shaped snap close, under the effect of described spring, described locked groove secure fit is in the through hole of described three-back-shaped snap close.
2. perforator according to claim 1, it is characterized in that: the top of described sector notch is the top of described conical surface thinner wall section, at least on the outward flange on described top, there is chamfering at the outward flange of described sector notch, with the remainder making the wall thickness of at least described tip edge be less than described conical surface thinner wall section.
3. perforator according to claim 2, is characterized in that: the outer wall of described conical surface thinner wall section is provided with at least one ring stiffener coaxially distributed with this conical surface thinner wall section or band, this reinforcement or bring and have corresponding breach at described sector notch place; Described black box is located on the service aisle in switch cap.
4. perforator according to claim 1, is characterized in that: in described conical surface thinner wall section, from bottom conical surface thinner wall section to the wall thickness on top by thick thinning gradually.
5. perforator according to claim 1, is characterized in that: the bottom of the conical surface thinner wall section of each elastic sealing element has the circumference of 300 ° to 340 °;
The tip edge of described sector notch is circular arc; Described ring part is provided with the base breach relative with described sector notch; The width of this base breach is less than the bottom width of described sector notch, and base breach is just to the central authorities of described sector notch.
6. according to the perforator one of claim 1-5 Suo Shu, it is characterized in that: the service aisle in the bowl bodies of described receiver is provided with air shuttle valve; This air shuttle valve comprises the inner cup portion that elastomeric material is made, and the bottom surface of this inner cup portion is plane, and these bottom surface central authorities are provided with cross-formed slits;
The sidewall of this inner cup portion is provided with four relative with four angles of described cross-formed slits respectively arcuate grooves; Described operating theater instruments is adapted to pass through described cross-formed slits, and the bottom surface of this inner cup portion is suitable for when not having operating theater instruments to pass sealing described service aisle, prevents the leakage of the perfusion gas being delivered to body cavity by plug valve, cylindrical shell thus.
7. perforator according to claim 6, it is characterized in that: the top of described inner cup portion has integrated flange, this flange is used for coordinating with the center through hole of the annular cover plate of described receiver and the sealed bottom of switch cap, coordinates with receiver upper-lower seal to make described switch cap; This perforator also comprises through the puncturing lever in described sleeve assembly, and this puncturing lever comprises the rod body part of ABS material and is connected to the head of PC material of this rod body part end.
8. perforator according to claim 6, is characterized in that: described four arcuate groove centrosymmetry distribution, and the degree of depth of each arcuate groove, increase from top to bottom gradually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510200947.1A CN104958093B (en) | 2013-09-30 | 2013-09-30 | Laparoscopic surgery puncture outfit |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510200947.1A CN104958093B (en) | 2013-09-30 | 2013-09-30 | Laparoscopic surgery puncture outfit |
| CN201310461463.3A CN103505270B (en) | 2013-09-30 | 2013-09-30 | Puncture outfit good in sealing property |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310461463.3A Division CN103505270B (en) | 2013-05-24 | 2013-09-30 | Puncture outfit good in sealing property |
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| Publication Number | Publication Date |
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| CN104958093A true CN104958093A (en) | 2015-10-07 |
| CN104958093B CN104958093B (en) | 2017-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510200947.1A Active CN104958093B (en) | 2013-09-30 | 2013-09-30 | Laparoscopic surgery puncture outfit |
| CN201310461463.3A Active CN103505270B (en) | 2013-05-24 | 2013-09-30 | Puncture outfit good in sealing property |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310461463.3A Active CN103505270B (en) | 2013-05-24 | 2013-09-30 | Puncture outfit good in sealing property |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106963457A (en) * | 2017-04-06 | 2017-07-21 | 山东省肿瘤防治研究院 | A kind of laparoscope punctures sheath |
| CN107468316A (en) * | 2017-09-12 | 2017-12-15 | 温州医科大学附属第二医院温州医科大学附属育英儿童医院 | A kind of adjustable abdominal cavity puncture outfit |
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| CN104958093B (en) * | 2013-09-30 | 2017-10-10 | 常州市新能源吻合器总厂有限公司 | Laparoscopic surgery puncture outfit |
| CN105615954B (en) * | 2014-11-08 | 2018-10-12 | 广州迪克医疗器械有限公司 | Puncture outfit containing silencing means |
| CN104546080B (en) * | 2015-01-28 | 2017-07-18 | 联合微创医疗器械（深圳）有限公司 | A kind of fully separating formula puncture outfit |
| CN106037896B (en) * | 2016-07-05 | 2020-02-04 | 江苏风和医疗器材股份有限公司 | Sealing gasket, sealing assembly with same and puncture outfit |
| CN106108986B (en) | 2016-08-02 | 2017-09-22 | 成都五义医疗科技有限公司 | A kind of diaphragm seal and component comprising groove |
| CN106667553B (en) * | 2016-12-28 | 2019-06-18 | 江苏风和医疗器材股份有限公司 | Sealing shroud and puncture outfit with it |
| CN109793555A (en) * | 2017-11-17 | 2019-05-24 | 英济股份有限公司 | Puncture outfit |
| CN111544094A (en) * | 2018-09-29 | 2020-08-18 | 江苏风和医疗器材股份有限公司 | Sealing element for a puncture device and puncture device |
| CN110652348A (en) * | 2019-11-11 | 2020-01-07 | 常州安康医疗器械有限公司 | Laparoscope puncture outfit adopting water-sealed structure |
| CN113456181B (en) * | 2020-03-31 | 2023-07-25 | 宁波新跃医疗科技股份有限公司 | Cannula puncture outfit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5387197A (en) * | 1993-02-25 | 1995-02-07 | Ethicon, Inc. | Trocar safety shield locking mechanism |
| WO1996032068A1 (en) * | 1995-04-13 | 1996-10-17 | Karl Storz Gmbh & Co. | Coupling for tubular-shaft instruments |
| CN102510739A (en) * | 2009-05-19 | 2012-06-20 | Ab医疗股份公司 | Obturador for trocar and related trocar |
| CN103505270B (en) * | 2013-09-30 | 2015-07-08 | 常州市新能源吻合器总厂有限公司 | Puncture outfit good in sealing property |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5792113A (en) * | 1996-12-12 | 1998-08-11 | Ethicon Endo-Surgerym Inc. | Universal seal for a trocar |
| AU2004214617B2 (en) * | 2003-09-30 | 2010-09-09 | Ethicon Endo-Surgery, Inc. | Reinforced seal assembly |
| DE202007001916U1 (en) * | 2007-02-09 | 2007-04-05 | Hsieh, Chin-Cheng, Shindian | Changeable changeover head for puncture instrument, has locking ring, cover, sealing ring and floating ring, whereby locking ring is provided with separation plate on its upper side, in whose center opening is available |
| US20100274193A1 (en) * | 2008-10-23 | 2010-10-28 | Patton Surgical Corporation | Cannula Seal |
| ITRM20110169A1 (en) * | 2011-04-01 | 2012-10-02 | Mysui S R L | HOLDING DEVICE FOR TROCAR AND RELATED TROCAR. |
| CN102895020A (en) * | 2012-11-15 | 2013-01-30 | 苏州澳力欣精密技术有限公司 | Disposable trocar |
| CN203539415U (en) * | 2013-09-30 | 2014-04-16 | 常州市新能源吻合器总厂有限公司 | Puncture device with better sealing performance |
-
2013
- 2013-09-30 CN CN201510200947.1A patent/CN104958093B/en active Active
- 2013-09-30 CN CN201310461463.3A patent/CN103505270B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5387197A (en) * | 1993-02-25 | 1995-02-07 | Ethicon, Inc. | Trocar safety shield locking mechanism |
| WO1996032068A1 (en) * | 1995-04-13 | 1996-10-17 | Karl Storz Gmbh & Co. | Coupling for tubular-shaft instruments |
| CN102510739A (en) * | 2009-05-19 | 2012-06-20 | Ab医疗股份公司 | Obturador for trocar and related trocar |
| CN103505270B (en) * | 2013-09-30 | 2015-07-08 | 常州市新能源吻合器总厂有限公司 | Puncture outfit good in sealing property |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106963457A (en) * | 2017-04-06 | 2017-07-21 | 山东省肿瘤防治研究院 | A kind of laparoscope punctures sheath |
| CN106963457B (en) * | 2017-04-06 | 2023-08-22 | 山东省肿瘤防治研究院 | Laparoscope puncture sheath |
| CN107468316A (en) * | 2017-09-12 | 2017-12-15 | 温州医科大学附属第二医院温州医科大学附属育英儿童医院 | A kind of adjustable abdominal cavity puncture outfit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103505270A (en) | 2014-01-15 |
| CN103505270B (en) | 2015-07-08 |
| CN104958093B (en) | 2017-10-10 |
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Inventor after: Tang Zhiliang Inventor after: Chen Tao Inventor after: Wang Guangfu Inventor before: Wan Jianfeng Inventor before: Huang Jianshe Inventor before: Sun Dongming Inventor before: Ma Boping Inventor before: Cao Qi |
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