CN103505270A - Puncture outfit good in sealing property - Google Patents
Puncture outfit good in sealing property Download PDFInfo
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- CN103505270A CN103505270A CN201310461463.3A CN201310461463A CN103505270A CN 103505270 A CN103505270 A CN 103505270A CN 201310461463 A CN201310461463 A CN 201310461463A CN 103505270 A CN103505270 A CN 103505270A
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- Prior art keywords
- conical surface
- wall section
- thinner wall
- sector notch
- surface thinner
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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
Abstract
The invention relates to a puncture outfit good in sealing property. An elastic sealing piece of the puncture outfit comprises a conical conical-surface thin-wall portion and an annular portion connected to the bottom of the conical-surface thin-wall portion. A sector notch is formed in the conical-surface thin-wall portion. At least the wall thickness of the edge of the top end on the edge of the sector notch is smaller than that of the rest portion of the conical-surface thin-wall portion, and/or the wall thickness of the conical-surface thin-wall portion is gradually reduced from the bottom to the top end at least on the area, opposite to the sector notch, of the conical-surface thin-wall portion. According to the puncture outfit good in sealing property, at least the wall thickness of the edge of the top end on the edge of the sector notch is small, so that the edge of the top end can wrap and be attached to a puncturing rod or other surgical instruments, the tension on the edges of the top ends of a plurality of elastic sealing pieces can be distributed evenly, the situation that the edges of some top ends are protruded due to the uneven distribution of the tension is avoided, and the puncture outfit good in sealing property has better package property and airtightness.
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 of using in laparoscopic surgery.
Background technology
Perforator is a kind ofly to pierce through stomach wall and for other operating theater instruments provide the operating theater instruments that enters body cavity passage, belong 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.For transdermal, first with scalpel, cut epiderm skin, then puncturing lever transdermal enter body cavity.By the near-end to described puncturing lever, exert pressure, promote the tip of described puncturing lever through skin, until perforator enters body cavity, extract puncturing lever out, sleeve assembly just can be used as the mis instruments passage of carrying out endo-surgical and splanchnoscopy operation.
Sleeve assembly is used for various apparatuses and instrument to introduce intraperitoneal, and provides aeration to make stomach wall be elevated to organ top.At this class intra-operative, by sleeve assembly, insert sniffer (for example, endoscope or peritoneoscope), to allow surgeon to observe operation process being connected in the external monitor of sniffer.
At intra-operative, for stoping intraperitoneal Leakage Gas, prior art has adopted 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 of stiffening ring, and a plurality of separate be pressed in this to ring between flexible seals, each elastic sealing element has the circumference of 180 ° to 270 ° and builds up together each other layer, 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 outside intraperitoneal, draught head is greater than 4KPa, gas leakage obviously; Meanwhile, when 2KPa, also there is the situation of chronic leakage in draught head outside intraperitoneal.
Summary of the invention
Technical problem to be solved by this invention is to provide the good perforator of sealing property between a kind of simple in structure, black box and operating theater instruments.
In order to address the above problem, the invention provides a kind of perforator, comprising: black box, sealing assembly comprises a plurality of elastic sealing elements; Each elastic sealing element comprises: be conical conical surface thinner wall section and the ring part that is connected to this conical surface thinner wall section bottom; 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 conical surface thinner wall section bottom to the wall thickness on top by thick attenuation gradually.
Above-mentioned first scheme can be implemented on the basis of above-mentioned the first scheme, forms the third scheme.
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, so that the wall thickness of at least described tip edge is less than the remainder of described conical surface thinner wall section.Described edge can be also the edge that even thickness, wall thickness are 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 be provided with at least one with ring stiffener or the band of the coaxial distribution of this conical surface thinner wall section, this reinforcement or be with at described sector notch place and there is corresponding breach.Ring stiffener or annular reinforcing band, can prevent from inserting black box and occurring that indivedual elastic sealing elements are stressed when excessive in puncturing lever or other operating theater instruments, described ring stiffener or band can be controlled 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,, with ring stiffener or the band of the coaxial distribution of described conical surface thinner wall section, be beneficial to the sealing property improving between elastic sealing element adjacent, lamination each other.
On the basis of above-mentioned first scheme, preferred scheme is, in described whole conical surface thinner wall section, from conical surface thinner wall section bottom to the wall thickness on top by thick attenuation gradually (wall thickness of conical surface thinner wall section bottom be close on its top end 1.5-3 doubly), the shape of above-mentioned elastic sealing element, structure, attenuation mode gradually in conjunction with 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, to prevent local eminence, there is gas leakage or sepage, to be further beneficial to described conical surface thinner wall section, be closely wrapped in puncturing lever or other operating theater instruments, further improve parcel and the air-tightness between black box and puncturing lever or other operating theater instruments.
On the basis of above-mentioned each scheme, further preferred: the bottom of the conical surface thinner wall section of each elastic sealing element has the circumference that is 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 over against the central authorities of described sector notch, with in the bottom circumference of conical surface thinner wall section of fixing each elastic sealing element, fix as far as possible the position of radial edges of the sector notch of each elastic sealing element, guarantee sector notch on the adjacent elastic sealing element of lamination enough angles that can stagger, avoid producing leakage path between adjacent sector notch, finally guaranteed the sealing between adjacent elastic sealing element.
On the basis of above-mentioned each scheme, further preferred scheme is: 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 of 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, so that the conical surface thinner wall section of each elastic sealing element forms conical sealing member, and then makes to coordinate with sealing assembly movable sealing through the operating theater instruments of described black box.The housing at described sleeve assembly top comprises: switch cap and receiver that upper-lower seal coordinates; 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 be fixed on the annular cover plate at this bowl bodies top, and be located at the plug valve on this bowl bodies sidewall with the cylindrical shell of this bowl bodies one, sealing; Plug valve is for allowing and stoping perfusion of fluid to be entered or discharged body cavity by cylindrical shell; On the lateral wall of described annular cover plate, be evenly distributed with at least two for the mounting groove of three-back-shaped snap close is set; The medial wall of three-back-shaped snap close is provided with spring; On the end face of described annular cover plate, be distributed with the interface with described mounting groove up/down perforation; The bottom of described switch cap is extended with a plurality of for inserting respectively the dead bolt of described interface 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 that plane ，Gai 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 suitable for through described cross-formed slits, and the bottom surface of this inner cup portion is suitable for sealing described service aisle when not having operating theater instruments to pass, and prevents from being thus delivered to by plug valve, cylindrical shell the leaking of perfusion gas of body cavity.
During use, the gas pressure in inner cup portion is on four arcuate grooves and push four angles of described cross-formed slits, makes described cross-formed slits closed when not having operating theater instruments to pass, and then sealing; When operating theater instruments is passed described cross-formed slits, described service aisle is realized sealing by described black box.Underrun cross-formed slits and the cylindricality operating theater instruments of this inner cup portion are slidably matched, and with respect to the slit type structure of duck-beak type air shuttle valve, material deformation is little, and the resistance acting on accordingly in operating theater instruments reduces.
The degree of depth of each arcuate groove, increases from top to bottom gradually, so that it is better to push the action effect of pressure of four angles of described cross-formed slits, and then improves sealing effectiveness.Described four arcuate groove centrosymmetry distribute, so that it is even to push the pressure of four angles of described cross-formed slits.
Further preferred scheme is: the top of described inner cup portion has integrated flange, this flange is for coordinating with the center through hole of annular cover plate and the sealed bottom of switch cap of described receiver, so that described switch cap coordinates with receiver upper-lower seal.
Further preferred scheme is: this perforator also comprises that this puncturing lever comprises the rod body part of ABS material and is connected to the head of the PC material of this rod body part end through the puncturing lever in described sleeve assembly.With respect to adopting metal rod body part, that the present invention has is with low cost, simple process, the higher feature of safety.
The present invention has positive effect with respect to prior art:
(1) perforator of the present invention is with respect to prior art, and in described conical surface thinner wall section, without strengthening pad part, 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 pushing described tip edge, being beneficial to described tip edge closely wraps up, is fitted in puncturing lever or other operating theater instruments, and the even tension that is beneficial to the tip edge on described a plurality of elastic sealing element distributes, avoid occurring because tension distribution is uneven that the situation of protuberance occurs indivedual tip edge, therefore has better parcel and air-tightness; Through emulation experiment, even if the difference of Intraabdominal air pressure and ambient pressure reaches 8KPa, there is not the situation (5 minutes, intraperitoneal external differential amplitude of variation is in 5%) of obvious gas leakage or sepage yet.At intraperitoneal external differential, reach 4KPa, also do not have the situation (be in half an hour, intraperitoneal external differential amplitude of variation is in 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 that is not less than 180 °, is preferably not less than 270 °; When adopting the circumference of 300 ° to 340 °, correspondingly, on described elastic sealing element, sector notch is just less, the technique effect of its corresponding generation is: when 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 parcel is tightr, and then improves sealing property, even if the outer draught head of intraperitoneal reaches 8.5KPa, there is not the situation of obvious gas leakage yet.In addition, if the bottom circumference of the conical surface thinner wall section of described elastic sealing element is greater than 340 °, can cause operating theater instruments to insert difficulty, cause the radial edges modification of sector notch of described elastic sealing element larger simultaneously, and then affect the sealing between the adjacent elastic sealing element of lamination.If the bottom circumference of the conical surface thinner wall section of described elastic sealing element is less than 300 °, 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 of the present invention top comprises: switch cap and receiver that upper-lower seal coordinates; With respect to integrative-structure, the advantage of this Split type structure: be beneficial in operation process, change in time or cleaning switch cap according to practical situation; Meanwhile, in operation process, can clear up the bowl bodies of receiver.In addition,, once one of switch cap and receiver are damaged, remaining parts can be organized perforator with another and be used in conjunction with, and are 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 push four angles of described cross-formed slits, when not having operating theater instruments to pass, make described cross-formed slits closed, and then seal when operating theater instruments is passed described cross-formed slits, described service aisle is realized sealing by described black box.
Accompanying drawing explanation
In order to clearly demonstrate innovative principle of the present invention and than the technical advantage of existing product, below by means of accompanying drawing by a possible embodiment of limiting examples explanation of the described principle of application.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 the 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.
The specific embodiment
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: switch cap 2-1 and receiver 2-2 that upper-lower seal coordinates; Described receiver 2-2 comprises: bowl bodies 2-20, be longitudinally connected to this bowl bodies 2-20 bottom center and be fixed on the annular cover plate 2-22 at this bowl bodies 2-20 top, and be located at the plug valve 4 on this bowl bodies 2-20 sidewall with the cylindrical shell 2-21 of this bowl bodies 2-20 one, sealing.This plug valve 4 is for allowing and stoping perfusion of fluid to enter or discharge body cavity by cylindrical shell 2-21;
The central axis of switch cap 2-1 and receiver 2-2 is provided with for wearing the service aisle 10 of operating theater instruments or puncturing lever; One black box 3 is located on the service aisle in switch cap 2-1, and black box 3 tops are provided with protector 6.
As Fig. 2, Fig. 5 A to 5C, described black box 3 comprises a pair of 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: be conical conical surface thinner wall section 3-21 and the ring part 3-22 that is connected to this conical surface thinner wall section 3-21 bottom; 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, so that the conical surface thinner wall section 3-21 of each elastic sealing element 3-2 forms conical sealing member, and then make to coordinate with sealing assembly 3 movable sealings through the operating theater instruments of described black box 3; 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 base breach 3-220 relative with described sector notch 3-20 and that connect; Described ring part 3-22 is also uniformly distributed and is useful on the pin Shang hole 3-23 being located on described a pair of stiffening ring 3-1, to fix 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 over against the central authorities of described sector notch 3-20, with in the bottom circumference of conical surface thinner wall section of fixing each elastic sealing element 3-2, fix as far as possible the position of radial edges of the sector notch 3-20 of each elastic sealing element 3-2, guarantee sector notch 3-20 on the adjacent elastic sealing element 3-2 of lamination enough angles that can stagger, avoid producing leakage path between adjacent sector notch 3-20, finally guaranteed the sealing between adjacent elastic sealing element 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 the outward flange 3-30 of contiguous this tip edge 3-24 on there is chamfering 3-29(as Fig. 5 E), so that the thinnest part of the wall thickness of described respective outer edges is below 1/2 of remainder of described conical surface thinner wall section.
As the optional scheme of another kind, described tip edge can be also the edge that even thickness, wall thickness are thinner than the remainder of described conical surface thinner wall section 3-21, the thickness of this tip edge be described conical surface thinner wall section remainder 1/2 to 1/4.
The technique effect of its corresponding generation is: sector notch less (bottom that is 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 operation, operating theater instruments is through after described black box 3, the radial edges parcel of the sector notch 3-20 of the sidewall of operating theater instruments and each elastic sealing element 3 is tightr, and then improves sealing property; In addition,, with respect to prior art, in described conical surface thinner wall section, without strengthening pad part, 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 pushing described tip edge, being beneficial to described tip edge wraps up more closely, is fitted in puncturing lever or other operating theater instruments, and the even tension that is beneficial to the tip edge on described a plurality of elastic sealing element distributes, avoid occurring because tension distribution is uneven that the situation of protuberance occurs indivedual tip edge, therefore has better parcel and air-tightness; Through emulation experiment, even if the outer draught head of intraperitoneal reaches 8KPa, there is not the situation (5 minutes, intraperitoneal external differential amplitude of variation is in 5%) of obvious gas leakage or sepage yet.At intraperitoneal external differential, reach 4KPa, also do not have the situation (be half an hour, intraperitoneal external differential amplitude of variation is in 5%) of chronic leakage or sepage.
As Fig. 2, on the lateral wall of described annular cover plate 2-22, be evenly distributed with at least two for the mounting groove 2-26 of three-back-shaped snap close 2-23 is set; The medial wall of three-back-shaped snap close 2-23 is provided with spring 2-24; On the end face of described annular cover plate 2-22, be 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 a plurality of for inserting respectively the dead bolt 2-11 of described interface 2-25 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 this inner cup portion 71 bottom surface 72 is provided with cross-formed slits 73 for plane ，Gai bottom surface 72 central authorities; 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 suitable for through described cross-formed slits 73, and the bottom surface 72 of this inner cup portion is suitable for sealing described service aisle 10 when not having operating theater instruments to pass, and 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 push four angles of described cross-formed slits 73, when not having operating theater instruments to pass, make described cross-formed slits 73 closures, and then seal when operating theater instruments is passed described cross-formed slits 73, described service aisle is realized sealing by described black box 3.Elastic sealing element 3-2 and air shuttle valve 7 adopt rubber to make.
Described inner cup portion 71 top 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, so that described switch cap 2-1 coordinates with receiver 2-2 upper-lower seal.
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 the PC material of this rod body part end.With respect to adopting metal rod body part, that the present invention has is with low cost, simple process, the higher feature of safety.
With respect to integrative-structure, housing 22 of the present invention adopts Split type structure, is beneficial in operation process, according to practical situation, changes in time or cleaning switch cap 2-1; Meanwhile, in operation process, can clear up the bowl bodies 2-20 of receiver 2-2.In addition,, once one of switch cap 2-1 and receiver 2-2 are damaged, remaining parts can be organized perforator with another and be used in conjunction with, and are beneficial to saving.
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 the ring stiffener 3-25 of the coaxial distribution of this conical surface thinner wall section and 3-26(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(of the coaxial distribution of this conical surface thinner wall section as Fig. 7 A and 7B), this reinforcement or be with at described sector notch place and there is corresponding breach.
Ring stiffener or annular reinforcing band can make conical surface thinner wall section be wrapped in more closely in puncturing lever or other operating theater instruments, also there is better parcel, even if there is local eminence in the remainder of described conical surface thinner wall section, do not affect air-tightness, make the air-tightness between black box and puncturing lever or other operating theater instruments better yet; In addition, ring stiffener or annular reinforcing band, can prevent from inserting black box and occurring that indivedual elastic sealing elements are stressed when excessive in puncturing lever or other operating theater instruments, described ring stiffener or band can be controlled 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,, with ring stiffener or the band of the coaxial distribution of described conical surface thinner wall section, be beneficial to the sealing property improving between elastic sealing element adjacent, lamination each other.
Through emulation experiment, even if the outer draught head of intraperitoneal reaches 8.5KPa, there is not the situation (5 minutes, intraperitoneal external differential amplitude of variation is in 5%) of obvious gas leakage or sepage in described black box yet.At intraperitoneal external differential, reach 5KPa, also do not have the situation (be in half an hour, intraperitoneal external differential amplitude of variation is in 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, it comprises described tip edge 3-24 the region 3-28(relative with described sector notch 3-20 on described conical surface thinner wall section 3-21), from the wall thickness on bottom to the top of conical surface thinner wall section 3-21 by thick attenuation gradually (wall thickness of conical surface thinner wall section bottom be close on its top end 1.5-3 doubly), the bottom of the wall thickness of the remainder of described conical surface thinner wall section 3-21 and conical surface thinner wall section 3-21 consistent, this structure is suitable for preventing local eminence, being beneficial to described conical surface thinner wall section integral body 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 transition 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 integral body of described conical surface thinner wall section and is wrapped in puncturing lever or other operating theater instruments, further improves 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 (5 minutes, intraperitoneal external differential amplitude of variation is in 5%) of obvious gas leakage or sepage in described black box yet.At intraperitoneal external differential, reach 5KPa, also do not have the situation (be half an hour, intraperitoneal external differential amplitude of variation is in 5%) of chronic leakage or sepage.
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, from the wall thickness integral body on bottom to the top of conical surface thinner wall section 3-21 by thick attenuation gradually (wall thickness of conical surface thinner wall section bottom be close on its top end 1.5-3 doubly), the shape of elastic sealing element 3-2, structure, gradual manner in conjunction with 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 integral body 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 (5 minutes, intraperitoneal external differential amplitude of variation is in 5%) of obvious gas leakage or sepage in described black box yet.At intraperitoneal external differential, reach 5.2KPa, also do not have the situation (be half an hour, intraperitoneal external differential amplitude of variation is in 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 also giving all embodiments.And these belong to apparent variation that spirit of the present invention extended out or change still among protection scope of the present invention.
Claims (10)
1. a perforator, comprises black box, and sealing assembly comprises a plurality of elastic sealing elements; Each elastic sealing element comprises: be conical conical surface thinner wall section and the ring part that is connected to this conical surface thinner wall section bottom; 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; It is characterized in that:
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;
And/or, in described conical surface thinner wall section at least in the region relative with described sector notch, from conical surface thinner wall section bottom to the wall thickness on top by thick attenuation gradually.
2. perforator according to claim 1, is characterized in that: on the outward flange of described sector notch or at least, on the outward flange on described top, have chamfering, so that the wall thickness of at least described tip edge is less than the remainder of described conical surface thinner wall section.
3. perforator according to claim 1, is characterized in that: the outer wall of described conical surface thinner wall section be provided with at least one with ring stiffener or the band of the coaxial distribution of this conical surface thinner wall section, this reinforcement or be with at described sector notch place and there is corresponding breach.
4. perforator according to claim 1, is characterized in that: in described conical surface thinner wall section, from the wall thickness on conical surface thinner wall section bottom to top by thick attenuation 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 that is not less than 180 °, or 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 ，Qie base breach of described sector notch over against the central authorities of described sector notch.
6. according to the perforator one of claim 1-5 Suo Shu, it is characterized in that: this perforator also comprises: sleeve assembly, described black box is located in the housing at this sleeve assembly top; Described black box also comprises a pair of 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, so that the conical surface thinner wall section of each elastic sealing element forms conical sealing member, and then makes to coordinate with sealing assembly movable sealing through the operating theater instruments of described black box;
The housing at described sleeve assembly top comprises: switch cap and receiver that upper-lower seal coordinates; Described black box is located on the service aisle in switch cap.
7. perforator according to claim 6, it is characterized in that: described receiver comprises: bowl bodies, be longitudinally connected to this bowl bodies bottom center and be fixed on the annular cover plate at this bowl bodies top, and be located at the plug valve on this bowl bodies sidewall with the cylindrical shell of this bowl bodies one, sealing; Plug valve is for allowing and stoping perfusion of fluid to be entered or discharged body cavity by cylindrical shell;
On the lateral wall of described annular cover plate, be evenly distributed with at least two for the mounting groove of three-back-shaped snap close is set; The medial wall of three-back-shaped snap close is provided with spring;
On the end face of described annular cover plate, be distributed with the interface with described mounting groove up/down perforation;
The bottom of described switch cap is extended with a plurality of for inserting respectively the dead bolt of described interface 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.
8. perforator according to claim 7, 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 that plane ，Gai 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 suitable for through described cross-formed slits, and the bottom surface of this inner cup portion is suitable for sealing described service aisle when not having operating theater instruments to pass, and prevents from being thus delivered to by trocar 2 leakage of the perfusion gas of body cavity.
9. perforator according to claim 8, it is characterized in that: the top of described inner cup portion has integrated flange, this flange is for coordinating with the center through hole of annular cover plate and the sealed bottom of switch cap of described receiver, so that described switch cap coordinates with receiver upper-lower seal; 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 the PC material of this rod body part end.
10. perforator according to claim 8, is characterized in that: described four arcuate groove centrosymmetry distribute, and the degree of depth of each arcuate groove, increase gradually from top to bottom.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310461463.3A CN103505270B (en) | 2013-09-30 | 2013-09-30 | Puncture outfit good in sealing property |
| CN201510200947.1A CN104958093B (en) | 2013-09-30 | 2013-09-30 | Laparoscopic surgery puncture outfit |
| PCT/CN2013/087614 WO2014187093A1 (en) | 2013-05-24 | 2013-11-21 | Puncture outfit with relatively good sealing performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310461463.3A CN103505270B (en) | 2013-09-30 | 2013-09-30 | Puncture outfit good in sealing property |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510200947.1A Division CN104958093B (en) | 2013-09-30 | 2013-09-30 | Laparoscopic surgery puncture outfit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103505270A true CN103505270A (en) | 2014-01-15 |
| CN103505270B CN103505270B (en) | 2015-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510200947.1A Active CN104958093B (en) | 2013-09-30 | 2013-09-30 | Laparoscopic surgery puncture outfit |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN104958093B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105615954A (en) * | 2014-11-08 | 2016-06-01 | 广州迪克医疗器械有限公司 | Puncture outfit comprising silencer |
| WO2016119310A1 (en) * | 2015-01-28 | 2016-08-04 | 联合微创医疗器械（深圳）有限公司 | Fully separable piercer |
| CN106037896A (en) * | 2016-07-05 | 2016-10-26 | 江苏风和医疗器材有限公司 | Sealing gasket, sealing assembly provided with same as well as puncturing device |
| CN106108986A (en) * | 2016-08-02 | 2016-11-16 | 成都五义医疗科技有限公司 | A kind of diaphragm seal comprising groove and assembly |
| CN106667553A (en) * | 2016-12-28 | 2017-05-17 | 江苏风和医疗器材股份有限公司 | Seal cartridge and puncture outfit with same |
| CN109793555A (en) * | 2017-11-17 | 2019-05-24 | 英济股份有限公司 | Puncture outfit |
| 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 |
| 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 |
| CN113456181A (en) * | 2020-03-31 | 2021-10-01 | 宁波新跃医疗科技股份有限公司 | Casing puncture outfit |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN105615954A (en) * | 2014-11-08 | 2016-06-01 | 广州迪克医疗器械有限公司 | Puncture outfit comprising silencer |
| WO2016119310A1 (en) * | 2015-01-28 | 2016-08-04 | 联合微创医疗器械（深圳）有限公司 | Fully separable piercer |
| CN106037896A (en) * | 2016-07-05 | 2016-10-26 | 江苏风和医疗器材有限公司 | Sealing gasket, sealing assembly provided with same as well as puncturing device |
| CN106108986A (en) * | 2016-08-02 | 2016-11-16 | 成都五义医疗科技有限公司 | A kind of diaphragm seal comprising groove and assembly |
| 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 |
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| CN106667553A (en) * | 2016-12-28 | 2017-05-17 | 江苏风和医疗器材股份有限公司 | Seal cartridge and puncture outfit with same |
| 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 |
| CN113456181A (en) * | 2020-03-31 | 2021-10-01 | 宁波新跃医疗科技股份有限公司 | Casing puncture outfit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104958093B (en) | 2017-10-10 |
| CN104958093A (en) | 2015-10-07 |
| CN103505270B (en) | 2015-07-08 |
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