CN207755344U - A kind of taper fixation kit and Hasson cannula systems with relocation mechanism - Google Patents

Abstract

The utility model is related to a kind of taper fixation kit and Hasson cannula systems with relocation mechanism, including resilient sleeve and support element, the resilient sleeve is nested on the outside of support element and wraps up compact schemes part, the resilient sleeve includes that its distal end is used to accommodate the casing being inserted into and the sealing lip for forming hermetic seal, resilient sleeve proximal end and flexible cone, the sealing lip extends laterally outward to form distal face, the outer rim of the resilient sleeve proximal end is more than the outer rim of distal face, flexible cone one end connects the outer rim of the resilient sleeve proximal end, the other end connects the outer rim of distal face, form the hollow truncated cone body that distal outer diameter is less than proximal outer diameter, extend limiting slot of the opening towards distal end in the resilient sleeve proximal end；The taper fixation kit also includes floating latch components, the floating latch components include for locking or the lock of relief sleeve, the fixed ring of the fixed resilient sleeve proximal end and the relocation mechanism being connected and fixed between ring and lock, the lock include the binding arm for fixed traction line.

Description

A kind of taper fixation kit and Hasson cannula systems with relocation mechanism

Technical field

The utility model is related to Minimally Invasive Surgery instrument more particularly to a kind of taper fixation kit structures with relocation mechanism.

Background technology

Puncture outfit is in a kind of Minimally Invasive Surgery (especially laparoscopic surgery), for establishing the artificial channel for entering body cavity Surgical instrument.Usually it is made of sheath assembly and puncture needle.Its clinical general occupation mode is：First cut on patient skin Osculum, then puncture needle is run through into sheath assembly, however penetrate stomach wall through skin opening together and enter body cavity.Once into body cavity Puncture needle is removed afterwards, leaves the channel that sheath assembly passes in and out body cavity as instrument.

In hard tube endoscope-assistant surgery, especially in laparoscopic surgery, generally use pneumoperitoneum apparatus is to the lasting perfusion of abdominal cavity of patients Gas (such as carbon dioxide gas) simultaneously maintains stable air pressure (about 13~15mmHg), empty to obtain enough surgical procedures Between.Sheath assembly is usually by casing, shell, diaphragm seal (also known as instrument seal) and zero sealing (also known as automatic-sealed) composition.Institute It states casing to penetrate to body cavity outside body cavity, the channel of body cavity is passed in and out as instrument.The shell is by casing, zero sealing and seals Film connects into a sealing system.Zero sealing is generally not provided the sealing for insertion instrument, and certainly when instrument is removed It is dynamic to close and form sealing.The diaphragm seal banding instrument and forms sealing when instrument is inserted into.

Laparoscopic surgery establishes the technology of pneumoperitoneum and is broadly divided into two kinds at present：It is open (Hasson methods) and closed (the Veress skill of handling needles).Wherein Hasson methods are mainly used for the patient there may be adhesion of abdominal wall.Hasson methods are usually first along tripe Navel upper limb or lower edge do 2cm notch, and notch runs through entire stomach wall, then stretches into finger through thus notch and detect, and detach abdominal wall With the adhesion of nethike embrane or intestinal tube；Then it is inserted into Hasson cannula systems under direct-view, and thinks abdominal cavity of patients via Hasson casings It injects carbon dioxide gas and forms pneumoperitoneum.

Current disclosed Hasson cannula systems are broadly divided into three classes, the first kind, such as U.S. Utility Patent A kind of puncture cannula component for housing containing hinge arrangement that US5203773 is disclosed swells to wear described by hinge rotation Thorn sheath assembly is fixed on patient's stomach wall, and such puncture cannula component is susceptible to leakage and is gradually abandoned.Second class, example The Hasson sets that taper fixation kit and smooth sheath assembly as disclosed in U.S. Utility Patent US5257973 collectively constitute The taper fixation kit is fixed in patient incision by guard system first by way of suture, then by smooth sheath assembly It is fixed in the taper fixation kit.Such Hasson cannula systems manufacturing cost is relatively low and most widely used, but its operation compared with Complicated and squeeze notch for a long time, especially when surgical instrument laterally does larger angle movement, instrument drives sheath assembly and gold The taper fixation kit of category deflection together, easily causes taper fixation kit and the gas leakage of incision of abdominal wall fitting part, while also making At the secondary damage of notch, increase the pain of patient.Third class, such as U.S. Utility Patent US5468248, Syringe selection can be used in the puncture cannula component containing sacculus disclosed in US6908454, US8147453, described sleeve pipe component Property the inflation sacculus that swells sheath assembly is fixed on patient's stomach wall, deflate release and deflated balloon are convenient for sheath assembly via trouble The skin incision of person into and out.Sheath assembly can be firmly fixed to patient skin incision and real by the sacculus that swells The sealing of existing contact area, and it is smaller for the injury of patient's wound.But such sacculus sheath assembly complicated and at This is higher, expensive.

Utility model content

The purpose of this utility model is to propose that a kind of structure is simpler, facilitates manufacture, cheap, while meeting sealing again The taper fixation kit of performance.

In a purpose of the utility model, propose that a kind of taper fixation kit with relocation mechanism includes resilient sleeve and branch Support member, the resilient sleeve are nested on the outside of support element and wrap up compact schemes part, wherein：The resilient sleeve includes its distal end for holding Receive insertion casing and form the sealing lip of hermetic seal, resilient sleeve proximal end and flexible cone, the sealing lip extend laterally outward Distal face is formed, the outer rim of the resilient sleeve proximal end is more than the outer rim of distal face, and it is close that flexible cone one end connects the resilient sleeve The outer rim at end, the other end connect the outer rim of distal face, form the hollow truncated cone body that distal outer diameter is less than proximal outer diameter, described Extend limiting slot of the opening towards distal end in resilient sleeve proximal end；The support element include the remote stomidium that is limited by support member distal end with The proximal end bore that support member proximal end limits, the proximal end bore dia are more than distal end bore dia, and the support element also includes by the branch Support member distal end extends to form the supporter of hollow truncated cone body, the support member proximal end stretch flange formability and elasticity to support member proximal end The limiting slot of set coordinates；The taper fixation kit also includes floating latch components, and the floating latch components include for locking Tight or relief sleeve lock, with the fixed fixed ring in the resilient sleeve proximal end and the floating being connected and fixed between ring and lock Mechanism, the lock include the binding arm for fixed traction line.

In another implementation of the utility model, wherein the relocation mechanism includes floating elastic arm, the floating Elastic arm includes camber elastic arm, S types or U-shaped elastic arm.

In another implementation of the utility model, wherein the floating elastic arm is at least arranged 2, and along the longitudinal axis Decile is arranged.

In another implementation of the utility model, wherein the relocation mechanism includes floating bushing, the floating bushing packet The floating body for running through through-hole with containment sheath component is included, the flange and its distal end that proximal end is laterally extended are laterally extended Go out the fold that floats.

In another implementation of the utility model, wherein it is U-shaped, V that the floating fold, which includes at least a section, The compound radial fold of type or compound curved surface composition.

In another implementation of the utility model, wherein the flexible cone includes to be set from distal end to proximal end circumferential direction Several anti-skid bulges set.

In another implementation of the utility model, wherein the flexible cone include its distal end anti-skid bulge and The seal convexity of its proximal end, the height and width of the seal convexity outwardly convex are both greater than anti-skid bulge, and with the support bodily form At hollow protrusion.

In another implementation of the utility model, wherein the supporter axial direction substantially decile is cut into Several windows, the window include trapezoidal window, circular window or polygon window.

Another purpose of the utility model provides a kind of Hasson cannula systems, wherein：Including the taper fixation group Part further includes sheath assembly, and the casing of described sleeve pipe component is snapped locking or release, and the instrument in plug-in-sleeve component is lateral When mobile, the relocation mechanism plays cushioning effect.

Description of the drawings

In order to more fully understand the essence of the utility model, it is described in detail below in conjunction with attached drawing, wherein：

Fig. 1 is the clinical application simulated scenario figure of the utility model first embodiment Hasson cannula systems；

Fig. 2 is the three-dimensional view of the Hasson cannula systems of the utility model；

Fig. 3 is the explosive view of taper fixation kit shown in Fig. 2；

Fig. 4 is axial sectional view of the taper fixation kit shown in Fig. 2 along binding arm；

Fig. 5 is the partial enlarged view of circle 5 shown in Fig. 4；

Fig. 6 is the partial enlarged view of circle 6 shown in Fig. 4；

Fig. 7 is the stereoscopic schematic diagram of floating latch components shown in Fig. 3；

Fig. 8 is the another stereoscopic schematic diagram of floating latch components shown in Fig. 3；

Fig. 9 is the schematic diagram of resilient sleeve shown in Fig. 3；

Figure 10 is the schematic diagram of support element shown in Fig. 3；

Figure 11 is the explosive view of taper fixation kit shown in second embodiment；

Figure 12 is taper fixation kit shown in Figure 11 along the axial sectional view of binding arm；

Figure 13 is the explosive view of taper fixation kit shown in 3rd embodiment；

Figure 14 is taper fixation kit shown in Figure 13 along the axial sectional view of binding arm；

Figure 15 is the explosive view of taper fixation kit shown in fourth embodiment；

Figure 16 is axial sectional view of the taper fixation kit shown in figure 15 along binding arm；

Figure 17 is the partial enlarged view of circle 17 shown in Figure 16；

Figure 18 is the schematic diagram of support element shown in Figure 15；

Figure 19 is the schematic diagram of resilient sleeve shown in Figure 15；

Figure 20 is the schematic diagram of floating bushing shown in Figure 15；

Figure 21 is the schematic diagram of fixed ring shown in Figure 15；

Figure 22 is the schematic diagram latched shown in Figure 15；

In all views, identical label indicates equivalent part or component.

Specific implementation mode

Disclosed herein is the embodiments of the present invention, it should be understood, however, that disclosed embodiment is only this reality With novel example, the utility model can be realized by different modes.Therefore, this disclosure be not to be construed for It is restrictive, but only as the basis of claim, and it is how new using this practicality as introduction those skilled in the art The basis of type.

With reference to figure 1-3, for convenience of stating, the side of follow-up all Proximity operation persons is defined as proximal end, and far from operator One side is defined as distal end, and the central axis for defining taper fixation kit 10 is the longitudinal axis 1000, the side of follow-up all substantially parallel longitudinal axis Axial to being known as, follow-up all directions for being approximately perpendicular to the longitudinal axis are known as laterally.

As shown in Figure 1, in conjunction with described in foregoing background, the utility model discloses one kind being used for open abdominal operation The Hasson cannula systems of (Hasson methods).As shown in Figure 1, in surgical procedure, taper is fixed into group with draught line 60 first Part 10 is fixed to the incision site of stomach wall 50, and sheath assembly 70 can be inserted into body by the channel that taper fixation kit 10 is formed Chamber.During surgery, surgeon operates various instruments, such as endoscope 80 in 70 channel of sheath assembly, nipper, scissors etc., Contact generates frictional force between instrument and sheath assembly 70.These friction strength may result in casing along stomach wall 50 inwardly or Outwardly direction moves.If sheath assembly 70 is not fixed, as sheath assembly 70 can proximally facing or distal direction fortune It is dynamic, it may result in skid off stomach wall 50 or be inserted into the casing of body cavity and travel further into body cavity, patient is caused to be damaged.Therefore logical Cross taper fixation kit 10 by sheath assembly 70 be firmly fixed on stomach wall 50 just it is of crucial importance.

The structure and composition of the utility model first embodiment Hasson cannula systems is illustrated in detail in Fig. 2-10.Such as Fig. 2- Shown in 3, a kind of typical case's Hasson cannula systems include sheath assembly 70 and taper fixation kit 10.Described sleeve pipe component 70 includes Cannula instruments sealing 73, zero sealing 74, top shell 71, lower case 77, the sealing of the instrument seal 73 and zero 74 are fixed Between the top shell 71 and lower case 77 and it include substantially aligned hole.Described sleeve pipe component 70 further includes and institute It states lower case to be connected and to the casing 76 that distal end extends, described sleeve pipe 76 further includes open boot proximal end 72 and with zero It seals the air valve 78 of 74 unicom and controls the valve rod 79 of air valve unicom or closing.The sealing lip 111 of 101 distal end of resilient sleeve is close It wraps up the casing 76 being inserted into it and ensures air-tightness, while latch components 103 of floating will be close to the lock of casing 76 of proximal part Tightly, ensure that sheath assembly 70 is fixedly secured by taper fixation kit 10.

Fig. 3 depicts the composition and assembly relation of taper fixation kit 10.Taper fixation kit 10 from distal end to proximal end according to Secondary includes resilient sleeve 101, and the support element 102 and floating latch components 103 of resilient sleeve 101 are used to support in resilient sleeve 101.Institute It states resilient sleeve 101, support element 102 and floating latch components 103 and is aligned installation along 1000 hole of the longitudinal axis.The floating latch components 103 include relocation mechanism, can buffer the swing angle that resilient sleeve 101 is driven when the sheath assembly 70 being locked is swung laterally. Being connected and fixed there are many modes between the resilient sleeve 101 and support element 102, can be used the nesting of interference fit type, surpass Sonic soldering connects, the modes such as splicing.The floating latch components 103 are using the nesting or bonding of interference fit type, ultrasonic welding etc. Mode is fixed on the limiting slot 115 of the resilient sleeve 101 of resilient sleeve 101.The present embodiment shows that connection type is the elasticity Set 101 and support element 102 carry out flexible connection fixation by being full of nested mode, while float latch components 103 and support element 102 Limiting slot 115 is fixedly clamped, this fixation makes the limiting slot 115 of the resilient sleeve 101 be in compressive state, is conducive to simultaneously Disassembly, cleaning.The resilient sleeve 101 is usually by natural rubber, silica gel, and isoprene rubber elastomeric material is made；The support element 102 usually by thermosets plasticity, such as：Polypropylene, polyethylene, the rigidity such as poly- record ethylene or metal material are made.

Shown in Fig. 3 and Fig. 9, the resilient sleeve 101 includes that remote stomidium 118 is used to accommodate the sheath assembly being inserted into simultaneously Form hermetic seal.The remote stomidium 118 is formed by sealing lip 111, and the sealing lip 111 can be non-circular, sealing lip week Length should be short enough and sturdy to ensure sealing reliability when applying 10mm sheath assemblies.Sealing lip 111 is circle in this example, It is R to define its radius₀, then sealing lip perimeter be approximately equal to 2*R₀* (π=3.14159) π.Usual sealing lip Zhou Changwei 40~ 50mm, 1~1.2mm of sealing lip sectional area².The sealing lip 111 extends laterally outward to form distal face 112.The resilient sleeve 101 also include resilient sleeve proximal end 114 and the flexible cone 110 of annular.The outer rim of the resilient sleeve proximal end 114 is more than distal face 112 outer rim.110 one end of the flexible cone connects the outer rim of the resilient sleeve proximal end 114, and the other end connects distal face 112 Outer rim, substantially form distal outer diameter be less than proximal outer diameter hollow truncated cone body.Along 114 inner edge of resilient sleeve proximal end to Distal end is axial to extend to form circumferential limiting slot 115 of the opening towards distal direction, and the limiting slot 115 includes internal groove side wall 115a, External groove sidevall 115b and stationary plane 115c.The internal groove side wall 115a limits proximal end bore 119.The flexible cone 110 includes from remote Hold several anti-skid bulges 113 being arranged circumferentially to proximal end.The distal face 112 of the resilient sleeve 101, flexible cone 110, resilient sleeve Proximal end 114 and 115 wall thickness of limiting slot are roughly the same.In order to ensure the fit and comfort with patient's body lumen notch, simultaneously Elastic cover material is reduced to reduce the processing cost of resilient sleeve, the wall thickness of the resilient sleeve 101 is chosen for 0.5-0.8mm, Shao Family name's hardness is 50-70 degree.It should be appreciated by those skilled in the art wall thickness and the hardness of resilient sleeve can also be according to material differences Multiple combinations or transformation are carried out, a combination thereof and transformation are also the range of the utility model protection.

As shown in figs. 3 and 10, the support element 102 includes remote stomidium 128 and proximal end bore 129, and the proximal end bore 129 is straight Diameter is more than 128 diameter of remote stomidium.The remote stomidium 128 is limited by support member distal end 121, and the proximal end bore 129 is close by support element End 124 limits.The support element 102 also includes supporter 120, and the supporter 120 is from the support member distal end 121 to support Part proximal end 124 extends to form hollow truncated cone body.The supporter 120 includes to be arranged circumferentially several and bullet from distal end to proximal end Property set 101 anti-skid bulges 113 cooperation fixed lobe 123.124 inner edge of the support member proximal end proximally stretch flange formability 125 with The limiting slot 115 of resilient sleeve 101 coordinates.

As shown in Fig. 3 and Fig. 7-8, the floating latch components 103 include the lock of the fixed ring 131 and proximal end of distal end 130 and be connected and fixed 131 proximal end of ring and latch 130 distal ends floating elastic arm 135.The fixed ring 131 is used for and support The flange 125 of part 102 is fixedly clamped the limiting slot 115.The lock 130 includes locked body 134 and locked body The handle 132 and position-limited edge 136 that 134 both ends are extended.The locked body 134 makes lock by the prefabricated bonnet lock hole 137 that curls into Button 130 forms the coupling mechanism force of inward curl.The inside crimp force of lock 130 will latch the handle 132 and position-limited edge at 130 both ends 136 staggeredly limit, and two handles 132 are staggered to form approximate V-type.By the way that two handles 132 of pressure or release will be pinched, can will latch Hole 137 is expanded or shunk.As shown in Fig. 2, lock 130 is in the released state, the enclasping force for latching 130 locks casing 76.Institute State lock 130 further include by the locked body 134 laterally outward and be tilted towards proximal direction extension substantially along 137 axis of bonnet lock hole Symmetrical two binding arms 133.The distal end line of two binding arms 133 approximately forms V-type.The binding arm 133 is set Several binding slots 138 are set for fixed traction line 60.The floating elastic arm 135 includes the elastic arm of camber, can also be close Like the shapes such as S types or U-shaped elastic arm.Along the floating bullet of 3 cambers of setting of the substantially decile of fixed ring 131 in the present embodiment Property arm 135 so that entirely lock 130 can float in the floating latch components 103.Those skilled in the art answers The understanding is arranged 2, and 3,4 or more floating elastic arms can play similar effect.The floating latch components 103 Material include by with favorable elasticity elasticity or semi-rigid material be made.The lock 130 can also use integral molded plastic Annular resilient plastic hoop is made in mode, and identical elasticity can be played using the lock and prefabricated rolled fashion above-mentioned of this mode Locking acts on.

As seen in figures 3-6, the resilient sleeve 101, support element 102 and floating latch components 103 are along 1000 hole pair of the longitudinal axis Neat installation constitutes taper fixation kit 10.The resilient sleeve 101 is nested in 102 outside of support element and wraps up compact schemes part 102. As seen in figs. 5-6, the support member distal end 121 is wrapped up by the distal face 112 of resilient sleeve 101, and 120 surface of the supporter is by institute The package of flexible cone 110 is stated, and the anti-skid bulge 113 of the resilient sleeve 101 wraps up the fixed lobe 123 of support element 102.Institute The flange 125 for stating support element 102 is wrapped up by the limiting slot 115 of resilient sleeve 101, at the same the flange 125 of the support element 102 with it is floating The fixed ring 131 of dynamic latch components 103 is fixedly clamped resilient sleeve proximal end 115 together, and resilient sleeve proximal end 115 is made to be in compression shape State, formation are fixedly secured.

As shown in Figs. 1-2, the description in aforementioned background art, Hasson cannula systems disclosed by the utility model are first combined Specific operative process mainly comprises the steps of：S1：2cm notch usually is done along navel upper limb or lower edge first first, Its notch runs through entire stomach wall, then stretches into finger through thus notch and detect, the adhesion of separation stomach wall 70 and nethike embrane or intestinal tube, and stitches Close draught line 60.S2：Sheath assembly 70 is inserted into taper fixation kit 10 and forms Hasson casings (as shown in Figure 2), then hand Taper fixation kit 10 is held, is inserted under direct-view in the notch of stomach wall 70, the floating lock that draught line 60 is fastened respectively In the binding slot 138 of two binding arms 133 of buckle assembly 103, taper fixation kit 10 is rigidly mounted cutting for stomach wall 50 Mouth position, at this point, due to the extruding of notch, 110 outer surface of flexible cone of resilient sleeve 101 is fitted closely with notch, and casing The casing 76 of component 70 is fitted closely with the sealing lip 111 of resilient sleeve 101, forms airtight sealing together.S3：It is described floating to pinch pressure Two handles 157 of dynamic latch components 103, make bonnet lock hole 137 expand, while by sheath assembly 70 along taper fixation kit 10 Channel is pushed into body cavity and passes through entire stomach wall 70, and boot proximal end 72 is made to expose in body cavity, then discharges two handles 157, Bonnet lock hole 137 reduces and casing 76 is locked sheath assembly 70.S4：Via the air valve 78 of sheath assembly 70 to abdominal cavity of patients It injects carbon dioxide gas and forms pneumoperitoneum.S5：It is inserted into endoscope 80 via the channel of sheath assembly 70, is adjusted by transverse shifting It is not damaged to check that abdominal organs have for the angle of endoscope 80, and places working column component (as schemed under the monitoring of endoscope 80 Shown in 1).S6：After completing operation, endoscope 80 is extracted, unclamps draught line 60, and extract Hasson cannula systems.

Aforementioned background art describes the operation step of the Hasson cannula systems and the utility model that disclose in the prior art Rapid roughly the same, the taper fixation kit as disclosed in U.S. Utility Patent US5257973 and common group of smooth sheath assembly At Hasson cannula systems, such Hasson cannula systems due to taper fixation kit generally use single metal parts, When step S5, since endoscope or other surgical instruments laterally do certain angle movement, instrument drives sheath assembly and metal Taper fixation kit deflection together, causes taper fixation kit and the gas leakage of incision of abdominal wall fitting part, while also easily causing to cut The secondary damage of mouth, increases the pain of patient.It should be appreciated by those skilled in the art when the amplitude of surgical instrument transverse shifting Bigger, taper fixation kit is more susceptible to above-mentioned gas leakage and degree of impairment.In the prior art, also a kind of to be made of silica gel Taper fixation kit, the general 3-5mm of thickness, this taper fixation kit can play class with the resilient sleeve of the utility model It is preferable with the notch stickiness of stomach wall like effect, it is slow that part can be played when surgical instrument transverse shifting angle is smaller Punching acts on, but to cannot still meet requirement when the instrument transverse shifting of wide-angle, be easy to cause gas leak phenomenon, and its Price compared to the resilient sleeve nesting support element of the utility model mode costly.Taper disclosed by the utility model is fixed Component 10, the resilient sleeve 101 are nested in the outside of support element 102, and outer surface, can be with abdomen due to being soft silica gel material Wall notch fits closely, and plays certain buffering effect；Anti-skid bulge 113 in the resilient sleeve 101 makes taper fixation group Part 10 is more fixedly secured in incision site.Especially in S5 steps, larger angle movement instrument is needed to carry out hand when encountering When art, instrument drives sheath assembly 70 to swing laterally, and holding the elastic arm 135 of the floating latch components 103 of casing tightly can rise To good cushioning effect, sheath assembly 70 is set to float in the floating latch components 103 together with lock 130, effectively The amplitude of fluctuation of flexible cone 110 is reduced, and then ensures the whole air-tightness of taper fixation kit 10, simultaneous buffering elastic cone Body 110 avoids causing secondary damage to incision of abdominal wall to the extruding force of incision of abdominal wall.

Figure 11-12 depicts the composition and assembly relation of the taper fixation kit 20 of the second embodiment of the utility model. The present embodiment proposes another technical solution, resilient sleeve and floating latch components on the basis of first embodiment to support element It is identical with the first embodiment.

Taper fixation kit 20 includes resilient sleeve 101, support element 202 and floating latch components 103, and along the longitudinal axis 1000 Hole alignment installation is fixed.The support element 202 includes remote stomidium 228 and proximal end bore 229, and 229 diameter of the proximal end bore is more than remote 228 diameter of stomidium.The remote stomidium 228 is limited by support member distal end 221, and the proximal end bore 229 is limited by support member proximal end 224 It is fixed.The support element 202 also includes supporter 220, and the supporter 220 is from the support member distal end 221 to support member proximal end 224 extend to form hollow truncated cone body.The supporter 220 includes to be arranged circumferentially several and resilient sleeve from distal end to proximal end The fixed lobe 223 of 101 anti-skid bulges 113 cooperation.224 inner edge of the support member proximal end proximally stretch flange formability 225 with elasticity The limiting slot 115 of set 101 coordinates.In axial direction substantially decile is cut into several trapezoidal windows to the supporter 220 222, the proximal end 222a width of the trapezoidal window 222 is more than the distal end 222b width of the trapezoidal window 222.Adjacent is described The supporting rack 227 being made of with fixed lobe 223 supporter 220 after cutting between trapezoidal window 222.Those skilled in the art Member is it is appreciated that the trapezoidal window of the utility model can also be transformed to circular window, ellipse window, polygon type window etc. Window of different shapes.As depicted in figs. 11-12, the resilient sleeve 101 is nested in 202 outside of support element and wraps up compact schemes part 202.The support member distal end 221 is wrapped up by the distal face 112 of resilient sleeve 101, and 227 surface of support frame as described above is by the elastic cone Body 110 wraps up, and the anti-skid bulge 113 of the resilient sleeve 101 wraps up the fixed lobe 223 of supporting rack 227.The support element 202 flange 225 is wrapped up by the limiting slot 115 of resilient sleeve 101, while the flange 225 of the support element 202 and floating lock group The fixed ring 131 of part 103 is fixedly clamped resilient sleeve proximal end 115 together, and resilient sleeve proximal end 115 is made to be in compressive state, forms jail Gu fixed.

The present embodiment is roughly the same with the combination of first embodiment and operative process, and plays the role of and realization Effect it is also essentially identical.But when forming extruding with incision of abdominal wall, since flexible cone 110 can be with the notch of extruding Skin is deformed into trapezoidal window 222 together, and better stickiness can be formed with incision of abdominal wall, improves taper fixation group The adaptability of part 20 and incision of abdominal wall can further mitigate the extruding to notch, ensure the air-tightness of its fitting.

Figure 13-14 depicts the composition and assembly relation of the taper fixation kit 30 of the 3rd embodiment of the utility model. The present embodiment proposes another technical solution, floating latch components on the basis of first embodiment to support element and resilient sleeve It is identical with the first embodiment.

Taper fixation kit 30 includes resilient sleeve 301, support element 302 and floating latch components 103, and along the longitudinal axis 1000 Hole alignment installation is fixed.The support element 302 includes remote stomidium 328 and proximal end bore 329, and 329 diameter of the proximal end bore is more than remote 328 diameter of stomidium.The remote stomidium 328 is limited by support member distal end 321, and the proximal end bore 329 is limited by support member proximal end 324 It is fixed.The support element 302 also includes supporter 320, and the supporter 320 is from the support member distal end 321 to support member proximal end 324 extend to form hollow truncated cone body.324 inner edge of the support member proximal end proximally stretch flange formability 325 and resilient sleeve 301 Limiting slot 115 coordinates.The resilient sleeve 301 is roughly the same with resilient sleeve 101, and the resilient sleeve 301 is in 110 proximal end of flexible cone The seal convexity 313 of position setting annular, the height and width of 313 outwardly convex of the seal convexity are both greater than anti-skid bulge 113, the seal convexity 313 and anti-skid bulge 113 are all hollow protrusions, and wall thickness and flexible cone 110 are essentially identical.Institute Stating seal convexity 313 can be such that taper fixation kit 30 is more preferably contacted with the proximal end of incision of abdominal wall, effectively improve sealing effect.

As illustrated in figs. 13-14, the resilient sleeve 301 is nested in 302 outside of support element and wraps up compact schemes part 302.It is described Support member distal end 321 is wrapped up by the distal face 112 of resilient sleeve 301.The resilient sleeve 301 is nested in 302 outside of support element and wraps Wrap support element 302.320 surface of the supporter is wrapped up by the flexible cone 110, the anti-skid bulge of the resilient sleeve 301 113 and seal convexity 313 form hollow protrusion.The flange 325 of the support element 302 is wrapped by the limiting slot 115 of resilient sleeve 301 It wraps up in, while the flange 325 of the support element 302 and another resilient sleeve that is fixedly clamped of the fixed ring 131 of floating latch components 103 Proximal end 115, makes resilient sleeve proximal end 115 be in compressive state, and formation is fixedly secured.

The present embodiment is roughly the same with the combination of first embodiment and operative process, and plays the role of and realization Effect it is also essentially identical.It is distinguished mainly is provided with the seal convexity 313 of annular in 110 proximal location of flexible cone, when After taper fixation kit 30 is inserted into incision of abdominal wall and fixes, the seal convexity 313 is with incision of abdominal wall proximal end or outside notch Edge position fits closely, when aforementioned first embodiment surgical procedure S5 steps, due to the seal convexity 313 be it is hollow, It can be deformed with notch pressure, the seal convexity 313 can increase the stickiness with notch, effective to improve sealing Effect avoids the occurrence of gas leak phenomenon, while the hollow seal convexity 313 will not form incision of abdominal wall additional squeeze Pressure, avoids causing secondary damage.

Figure 15-22 depicts the composition and assembly relation of the taper fixation kit 40 of the fourth embodiment of the utility model. The present embodiment proposes another technical solution, resilient sleeve and support element on the basis of first embodiment to floating latch components It is roughly the same with first embodiment.

As shown in figure 15, taper fixation kit 40 includes resilient sleeve 401 successively from distal end to proximal end, is used in resilient sleeve 401 In the support element 402 and floating latch components 403 of support resilient sleeve 401.The floating latch components 403 include fixed ring 406, floating bushing 404 and lock 405.The fixed ring 406 of the resilient sleeve 401, support element 402 and floating latch components 103, Floating bushing 404 and lock 405 are aligned along 1000 hole of the longitudinal axis to be installed.

Referring now to figure 1 shown in 5 and Figure 19, the resilient sleeve 401 includes that remote stomidium 418 is used to accommodate the sheath assembly being inserted into And form hermetic seal.The remote stomidium 418 is formed by sealing lip 411, and the sealing lip 411 can be non-circular, sealing lip Perimeter should be short enough and sturdy to ensure sealing reliability when applying 10mm sheath assemblies.The sealing lip 411 is laterally outward Extend to form distal face 412.The resilient sleeve 401 also includes resilient sleeve proximal end 414 and the flexible cone 410 of annular.The bullet Property set proximal end 414 outer rim be more than distal face 412 outer rim.410 one end of the flexible cone connects the resilient sleeve proximal end 414 Outer rim, the other end connect distal face 412 outer rim, substantially form distal outer diameter be less than proximal outer diameter hollow truncated cone Body.Stationary plane 415a is laterally inwardly extended to form along 414 inner edge of resilient sleeve proximal end, the stationary plane 415a is in axial direction To distally extending to form internal groove side wall 415b.The resilient sleeve proximal end 414, stationary plane 415a and internal groove side wall 415b form limit together Slot 415.The internal groove side wall 415a limits proximal end bore 419.The flexible cone 410 includes to be arranged circumferentially from distal end to proximal end Several anti-skid bulges 413.The distal face 412 of the resilient sleeve 401, flexible cone 410, resilient sleeve proximal end 414 and limiting slot 415 wall thickness are roughly the same.

As shown in Figure 15 and Figure 18, the support element 402 includes remote stomidium 428 and proximal end bore 429, the proximal end bore 429 Diameter is more than 428 diameter of remote stomidium.The remote stomidium 428 is limited by support member distal end 421, and the proximal end bore 429 is by support element Proximal end 424 limits.The support element 402 also includes supporter 420, and the supporter 420 is from the support member distal end 421 to branch The hollow truncated cone body interference fit that support member proximal end 424 extends to form hollow truncated cone body and formed with resilient sleeve 401 Match.The supporter 420 includes to be arranged circumferentially several fixations with the cooperation of 401 anti-skid bulge 413 of resilient sleeve from distal end to proximal end Protrusion 423.The outer rim of the support member proximal end 424 and inner edge proximally extend to form flange 425a and flange 425b, institute respectively State support member proximal end 424 and flange 425a and flange 425b composition mounting grooves 425.The flange 425a coordinates with limiting slot 415. Flange 425b coordinates with floating position-limiting slot 444.

As shown in Figure 15 and Figure 20, the floating bushing 404 includes the floating body 442 through through-hole 445.Floating body 442 proximal ends include the flange 441 being laterally extended, and distal end laterally extends floating fold 443, and the floating fold 443 includes At least one section is U-shaped radial fold, includes 3 positive and negative connected U-shaped radial folds in the present embodiment.The floating pleat Wrinkle 443 extends outward opening axially towards limiting slot 444 distally.The floating bushing 404 usually by natural rubber, Silica gel, isoprene rubber elastomeric material are made.

As shown in Figure 15 and Figure 21-22, the fixed ring 406 includes the fixed flange of the fixing end 461 and proximal end of distal end 462, the torus in the section of one approximation T-type of the fixing end 461 and the composition of fixed flange 462.The lock 405 includes packet Include locked body 450 and handle 451 and position-limited edge 452 that 450 both ends of locked body are extended.The locked body 450 is by prefabricated Curl into the coupling mechanism force that bonnet lock hole 455 makes lock 405 form inward curl.The inside crimp force of lock 405 will latch 405 The handle 451 and position-limited edge 452 at both ends staggeredly limit, and two handles 451 are staggered to form approximate V-type.By the way that pressure or release will be pinched Two handles 451 can expand or shrink bonnet lock hole 455.The lock 405 further include from the locked body 450 laterally to It is outer and be tilted towards proximal direction extension substantially along two binding arms 453 of 455 axisymmetrical of bonnet lock hole.Two binding arms 453 distal end line approximately forms V-type.Several binding slots 454 are arranged for fixed traction line 60 in the binding arm 453.

As seen in figs. 15-17, the resilient sleeve 401, support element 402 and floating latch components 403 are along 1000 hole of the longitudinal axis Alignment installation constitutes taper fixation kit 40.The resilient sleeve 401 is nested in 402 outside of support element and wraps up compact schemes part 402.As shown in figures 15-16, the support member distal end 421 is wrapped up by the distal face 412 of resilient sleeve 401,420 table of the supporter Face is wrapped up by the flexible cone 410, and the anti-skid bulge 413 of the resilient sleeve 401 is by the fixed lobe 423 of support element 402 Package.The flange 425a of the support element 402 is wrapped up by the limiting slot 415 of resilient sleeve 401, the flange of the support element 402 425b is wrapped up by the floating position-limiting slot 444 of the floating bushing 404.The fixed flange 462 of the fixed ring 406 is inserted into mounting groove In 425, by limiting slot 415 and 444 clamping fixed of floating position-limiting slot in mounting groove 425.The flange 425a of the support element 402 The fixed flange 462 of (425b) and fixed ring 406 is fixedly clamped limiting slot 415 and floating position-limiting slot 444 together, makes limiting slot 415 and floating position-limiting slot 444 be in compressive state, formation is fixedly secured.

The present embodiment is roughly the same with the combination of first embodiment and operative process, and plays the role of and realization Effect it is also essentially identical.It is mainly that floating latch components 403 use 443 side of floating fold with U-shaped radial fold that it, which is distinguished, Formula realizes that cushioning effect, with reference to figure 1-2 and Figure 16, needs especially in S5 steps when encountering at any angle on horizontal direction When larger angle movement instrument being wanted to be performed the operation, instrument drives sheath assembly 70 to swing laterally, and holds the floating lock of casing tightly The floating fold 443 of component 103 can play cushioning effect to swinging laterally at any angle, make sheath assembly 70 and lock 450 float in the floating latch components 403 together, effectively reduce the amplitude of fluctuation of flexible cone 410, and then ensure cone Shape fixation kit 40 whole air-tightness, simultaneous buffering extruding force of the flexible cone 410 to incision of abdominal wall, avoids cutting stomach wall Mouth causes secondary damage.For the present embodiment compared to first embodiment, buffering course is gentler, and in the difference of horizontal swing Angle plays roughly the same buffering effect, improves the comfort of operation.It will be understood by those skilled in the art that the floating Fold 443 in addition to the present embodiment show it is U-shaped other than, be also designed to V-type or more curved surface composite folds, be attained by close Like effect.

Art technology is appreciated that the utility model resilient sleeve above-mentioned and support element can also use a part, Then it is used after being connected and fixed with floating latch components, due to the relocation mechanism of floating latch components, such as：Floating elastic arm Or floating bushing can buffer the sheath assembly horizontal swing angle for being snapped locking, so equally can be to larger angle shifter When tool, play the role of buffering, a combination thereof is also the range of the utility model protection.

The many different embodiments and example of the utility model are had shown and described.One of this field is common Technical staff, under the premise of not departing from the scope of the utility model, by it is suitably modified the method and instrument can be made it is suitable Answering property is improved.Several kinds of amendment schemes are referred, for example the wall thickness of resilient sleeve can be carried out with hardness according to material difference Multiple combinations or transformation, for those skilled in the art, other amendment schemes are also to be contemplated that.Therefore this practicality Novel range should be according to accessory claim, while being understood not to the knot for being shown and being recorded by specification and attached drawing The particular content of structure, material or behavior is limited.

Claims (9)

1. a kind of taper fixation kit with relocation mechanism, including resilient sleeve and support element, the resilient sleeve is nested in support element Simultaneously wrap up compact schemes part in outside, it is characterised in that：

A) resilient sleeve includes that its distal end is used to accommodate the casing being inserted into and forms the sealing lip of hermetic seal, resilient sleeve proximal end with Flexible cone, the sealing lip extend laterally outward to form distal face, and the outer rim of the resilient sleeve proximal end is more than the outer of distal face Edge, flexible cone one end connect the outer rim of the resilient sleeve proximal end, and the other end connects the outer rim of distal face, and it is small to form distal outer diameter In the hollow truncated cone body of proximal outer diameter, limiting slot of the opening towards distal end is extended in the resilient sleeve proximal end；

B) support element includes the remote stomidium limited by support member distal end and the proximal end bore that support member proximal end limits, the proximal end Bore dia is more than distal end bore dia, and the support element is also hollow comprising being extended to form from the support member distal end to support member proximal end The limiting slot of the supporter of truncated cone body, the support member proximal end stretch flange formability and resilient sleeve coordinates；

C) the taper fixation kit also includes floating latch components, and the floating latch components include for locking or discharging set The lock of pipe, the fixed ring of the fixed resilient sleeve proximal end and the relocation mechanism being connected and fixed between ring and lock, the lock Button includes the binding arm for fixed traction line.

2. taper fixation kit as described in claim 1, it is characterised in that：The relocation mechanism includes floating elastic arm, institute It includes camber elastic arm, S types or U-shaped elastic arm to state floating elastic arm.

3. taper fixation kit as claimed in claim 2, it is characterised in that：2, and edge is at least arranged in the floating elastic arm Longitudinal axis etc. point setting.

4. taper fixation kit as described in claim 1, it is characterised in that：The relocation mechanism includes floating bushing, described floating Dynamic set includes that there is the perforative floating body of containment sheath component, the flange and its distal end that proximal end is laterally extended laterally to prolong The floating fold of stretching.

5. taper fixation kit as claimed in claim 4, it is characterised in that：The floating fold is including at least a section It is U-shaped, the compound radial fold of V-type or compound curved surface composition.

6. taper fixation kit as described in claim 1, it is characterised in that：The flexible cone includes from distal end to proximal loop To several anti-skid bulges of setting.

7. taper fixation kit as claimed in claim 6, it is characterised in that：The flexible cone includes the anti-skidding convex of its distal end Rise and the seal convexity of its proximal end, the height and width of the seal convexity outwardly convex are both greater than anti-skid bulge, and with support Body forms hollow protrusion.

8. taper fixation kit as claimed in claim 6, it is characterised in that：The supporter axial direction substantially decile is cut Several windows are cut out, the window includes trapezoidal window, circular window or polygon window.

9. a kind of Hasson cannula systems, it is characterised in that：Including the taper fixation kit as described in claim 1-8 is any, Further include sheath assembly, the casing of described sleeve pipe component is snapped locking or release, and the instrument in plug-in-sleeve component laterally moves When dynamic, the relocation mechanism plays cushioning effect.