CN207837684U - Intracavitary orthotopic fenestration sting device - Google Patents

Abstract

The utility model discloses a kind of intracavitary orthotopic fenestration sting devices, include the puncture needle component of foley's tube and coaxial package in foley's tube；Foley's tube includes sacculus push rod at least two cavitys, be arranged sacculus push rod distal end sacculus utricule, foley's tube seat in sacculus push rod proximal end is set；Puncture needle component includes puncturing push rod, being arranged in the piercing needle for puncturing push rod distal end, puncture handle；It includes proximal handle and distal handle to puncture handle, distal handle is fixedly connected or is detachably fixed with foley's tube seat and connect, proximal handle is connect with push rod is punctured, proximal handle is arranged along distal handle, is equipped between distal handle and proximal handle for controlling lancet puncture depth and locking the puncture control mechanism of puncture needle.The utility model provide it is a kind of can accurately control that paracentesis depth, paracentesis depth are adjustable, can locks puncture, and accurately puncture holding point of puncture is located at the intracavitary orthotopic fenestration sting device in branch vessel center.

Description

Intracavitary orthotopic fenestration sting device

Technical field

The utility model belongs to the field of medical instrument technology, is related to a kind of intracavitary intervention apparatus more particularly to a kind of intracavitary Orthotopic fenestration sting device.

Background technology

With constantly carrying out in endoluminal vascular reconstruction operations, the application of overlay film frame is also more and more, but some are special Position can influence the blood supply of arterial bifurcation vessel using overlay film frame, such as the arch of aorta, celiac trunk, bilateral renal arteries With the positions such as superior mesenteric artery so that be extremely restricted using overlay film frame at these positions.Art formula can only be passed through at present Improvement, such as using hybridization operation, or by the improvement of instrument, such as modular rack, pre- windowing stent, branch stent, more Layer bare bracket etc. new instruments technology carries out the stent procedure at above-mentioned position, but for most cases, the arch of aorta Portion's lesion locations anatomical structure is extremely complex, while the difference of individual is apparent, and above-mentioned technical proposal is all strongly depend on human body point The anatomical structure of branch vessel brings huge challenge for its standardization of products and commercialization.

Overlay film frame orthotopic fenestration is a kind of more advanced technology, including energy windowing and machinery windowing two major classes, energy Amount windowing is to carry out fenestration procedure, the i.e. ablation by energy to overlay film frame using such as laser, radio frequency and thermocouple energy With hole expected from generation.But requirement of this mode to equipment is high, if energy is too high, the carbonization of holder overlay film, and decomposition product Thrombosis may be caused, energy is insufficient, and the expected effect that opens a window is not achieved.Energy can not only be covered with ablation holder simultaneously Film, it is also possible to cause damaging surrounding tissue, therefore, machinery windowing becomes a kind of relatively conservative, but safer windowing Mode.

A kind of machinery mount orthotopic fenestration technology is to puncture holder overlay film with the hollow needle of seal wire by one, with recession Go out puncture needle, entering overlay film frame along seal wire using Cutting balloon is expanded.The problem of this mode, is that needle can not be accurate The true middle position for finding branch vessel opening in dynamic intravascular, is being easy to wear partially or damage peripheral vessels.It adopts Syringe needle and needle tubing are the structure of integral type, and compliance is bad, and rigid needle tubing is not suitable for the position of curved blood vessel；It punctures and drives Dynamic inconvenience, so that puncture force is insufficient.

Another machinery mount orthotopic fenestration technology is by the end support overlay film of a ultrahard guide wire, then respectively With 1mm, 3mm, 8mm dilating sacculus, gradually enlarged openings position.The problem of which, is that seal wire puncture is only applicable to terylene material The overlay film frame of matter is not suitable for the overlay film frame of e-PTFE membrane materials.Seal wire can not accurately find branch vessel opening Middle position in dynamic intravascular, is being easy to wear partially or damage peripheral vessels.After puncture is held in seal wire tail portion firmly, handing over During changing seal wire, it is difficult to find point of puncture again.After seal wire punctures, aperture is smaller, cannot once be expanded using big sacculus , it is necessary to it is gradually expanded by means of small sacculus, the time of increased operation and the cost of instrument.

Also a kind of machinery mount orthotopic fenestration mode is to be fixed on branch vessel position, puncture needle using anchoring balloon Head is punctured overlay film frame, is then expanded using expander point of puncture, be then fed into seal wire in the case where puncturing shank push, from And realize orthotopic fenestration.Determining for puncture needle is improved by anchoring balloon auxiliary positioning to a certain extent in the technical solution Position, but anchoring balloon is softer, in the intravascular of complexity distortion, sacculus is easily deformed, it is difficult to ensure that point of puncture is in branch's blood Pipe center, exists and pierces inclined risk.The technology uses coaxial configuration, and inner and outer tubes are easy to happen relative displacement, in push In the process, sacculus is easily deformed, if pinched together, increases push resistance, if amount of tension is excessive, there are the risks of rupture.It wears Pricker tube body does not seal, and after puncturing successfully, contrast solution cannot be beaten by puncture needle and is confirmed whether to puncture successfully, while puncturing card Push rod is easy to give a discount, and easily accidentally wears other instruments or surrounding tissue.And paracentesis depth cannot fine adjustment as needed, hold Easily cause paracentesis depth it is long and accidentally injure offside tissue or paracentesis depth not enough cause to puncture it is unsuccessful.

Utility model content

The technical problem to be solved by the present invention is to cannot carry out fine adjustment for paracentesis depth, be easy to cause Paracentesis depth is long and accidentally injures offside tissue, and paracentesis depth not enough causes to puncture unsuccessful problem, and providing a kind of can accurately control Paracentesis depth processed, paracentesis depth is adjustable, can lock paracentesis depth, and accurately punctures that keep point of puncture to be located at branch vessel central Intracavitary orthotopic fenestration sting device.

The further technical problems to be solved of the utility model are, provide a kind of puncture needle push rod be not easy to give a discount, It punctures more collection and neutralizes effective intracavitary orthotopic fenestration sting device.

The utility model solves technical solution used by its technical problem：

The first technical solution of intracavitary orthotopic fenestration sting device is, including foley's tube and coaxial package are led in sacculus Puncture needle component in pipe；

The foley's tube includes the sacculus push rod for carrying at least two cavitys, the ball in sacculus push rod distal end is arranged Foley's tube seat in sacculus push rod proximal end is arranged in capsule utricule；

The puncture needle component includes puncturing push rod, being arranged in the piercing needle for puncturing push rod distal end, puncture handle；

The puncture handle includes proximal handle and distal handle, the distal handle be fixedly connected with foley's tube seat or It is detachably fixed connection, the proximal handle is connect with push rod is punctured, and the proximal handle is arranged along distal handle, described remote It is equipped between end handle and proximal handle for controlling piercing needle paracentesis depth and locking the puncture control mechanism of puncture needle.

In the first technical solution of the intracavitary orthotopic fenestration sting device, distal end described in the preferably described proximal handle Handle is moved axially along distal handle, and the puncture control mechanism includes the maximum being arranged between proximal handle and distal handle Stroke control assembly and paracentesis depth locked component.

In the first technical solution of the intracavitary orthotopic fenestration sting device, the preferably described range control assembly Including be arranged in proximal handle or distal handle on stroke groove, corresponding distal handle or proximal handle are equipped with limit Block；The stroke groove is along push rod axially setting is punctured, and the limited block coordinates the sliding in stroke groove and its sliding is maximum Distance is to allow the depth capacity of lancet puncture.

In the first technical solution of the intracavitary orthotopic fenestration sting device, the preferably described paracentesis depth locked component For multiple position and lock slots are arranged on proximal handle control unit, corresponding distal handle is equipped with springy locking member, the elasticity Locking piece elastic top, which is pressed in position and lock slot, will puncture pin position locking, in outer power drive proximal handle so that elastic locking Part slides between different position and lock slots.

In the first technical solution of the intracavitary orthotopic fenestration sting device, the preferably described paracentesis depth locked component Including limiting the actuating sleeve in distal handle, the proximal handle of corresponding actuating sleeve is equipped with sliding shoe, the sliding shoe and drive Dynamic set is engaged by screw thread, and rotation actuating sleeve driving sliding shoe slides axially along push rod is punctured.

In the first technical solution of the intracavitary orthotopic fenestration sting device, the preferably described range control assembly Including the stroke groove that the distal handle is equipped with, the stroke groove is arranged along push rod axial direction is punctured, and the sliding shoe is worn Overtravel slot is engaged with driving external threading, and the sliding shoe cooperation is slided in stroke groove and it slides maximum distance to allow The depth capacity of lancet puncture.

In the first technical solution of the intracavitary orthotopic fenestration sting device, the preferably described piercing needle and puncture push away Bar is sent to be designed with hollow closed cavity, the hollow closed cavity unicom of the two.

In the first technical solution of the intracavitary orthotopic fenestration sting device, the preferably described puncture push rod is bendable Tube body bent and with support force.

In the first technical solution of the intracavitary orthotopic fenestration sting device, the preferably described puncture push rod is overlay film Bourdon tube.

It is preferably described to puncture the hollow of push rod in the first technical solution of the intracavitary orthotopic fenestration sting device The lining silk for reinforcing puncturing push rod support force is coated in closed cavity.

In the first technical solution of the intracavitary orthotopic fenestration sting device, the preferably described sacculus push rod is at least wrapped A guidewire lumen and a full chamber are included, the piercing needle and puncture push rod are installed in the guidewire lumen, described full Chamber distal end is connected with the full head for being filled to sacculus utricule with sacculus utricule unicom, proximal end.

In the first technical solution for filling the intracavitary orthotopic fenestration sting device, the preferably described sacculus utricule is non- Compliance or semi-compliant sacculus utricule.

Second of technical solution of intracavitary orthotopic fenestration sting device be：A kind of intracavitary orthotopic fenestration sting device, including The puncture needle component of foley's tube and coaxial package in foley's tube；

The foley's tube includes the sacculus push rod for carrying at least two cavitys, the ball in sacculus push rod distal end is arranged Foley's tube seat in sacculus push rod proximal end is arranged in capsule utricule；

The head end of the sacculus push rod is located at blood vessel center position after sacculus utricule is full；

The puncture needle component includes puncturing push rod, being arranged in the piercing needle for puncturing push rod distal end, puncture handle；

The push rod that punctures is tube body flexible and with support force, is coated in the puncture push rod for adding The strong lining silk for puncturing push rod support force.

In the first technical solution of the utility model, it is equipped on puncturing handle and punctures control mechanism, for accurately controlling Lancet puncture depth and locking puncture needle, it is adjustable to realize paracentesis depth, avoids causing paracentesis depth long and accidentally injure pair Side tissue or paracentesis depth not enough cause to puncture unsuccessful.And puncturing control mechanism can make piercing needle stablize Puncture position prevents withdrawing after puncturing successfully, and after puncturing successfully, to enter main body intravascular along pin inner chamber is punctured for seal wire, Correctly find the middle position of branch vessel opening so that in dynamic intravascular, seal wire is not easy to wear partially or damage Hinder peripheral vessels.In addition, the head end of sacculus push rod is located at blood vessel center position after sacculus utricule is full, i.e., led using sacculus Pipe is, from division center, sacculus pushes rod head end can be located at blood vessel center position after sacculus utricule is full, improve and puncture Validity.It is non-compliance or semi-compliant sacculus utricule to select sacculus utricule, in the intravascular of complexity distortion, compared to complying with Property sacculus be easier to make sacculus to be directed toward the position of branch vessel opening.

Middle puncture needle tube body does not seal in the prior art, after puncturing successfully, cannot carry out radiography be confirmed whether puncture at Work(, at the same puncture card push rod it is submissiveer, be easy give a discount, easily accidentally wear other instruments or surrounding tissue.The utility model In two kinds of technical solutions, using tube body flexible and with support force, and lining can also be coated in puncturing push rod Silk, improves the support force of puncture needle component, during puncture, it is not easy to give a discount, puncture and more concentrate, is more efficient, subtract Few risk for accidentally wearing other instruments or surrounding tissue.

Description of the drawings

Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing：

Fig. 1 is the structural schematic diagram of the utility model embodiment 1；

Fig. 2 is the distal structure sectional view of the utility model embodiment 1；

Fig. 3 is the structural schematic diagram of 1 foley's tube of the utility model embodiment；

Fig. 4-10 is the structural schematic diagram of 1 sacculus push rod cross section of the utility model embodiment；

Figure 11 is the structural schematic diagram of 1 puncture needle component of the utility model embodiment；

Figure 12 is the sectional view that the utility model embodiment 1 punctures handle；

Figure 13-14 is the structural schematic diagram that the utility model embodiment 1 punctures push rod cross section；

Figure 15 is the structural schematic diagram that the utility model embodiment 1 punctures that control mechanism punctures push rod；

Figure 16 is the structural schematic diagram that the utility model embodiment punctures second of embodiment of control mechanism；

Figure 17 is the axial sectional view of Figure 16；

Figure 18 is J-J sectional views in Figure 17.

Specific implementation mode

For a clearer understanding of the technical features, objectives and effects of the utility model, now control attached drawing is detailed Illustrate specific embodiment of the present utility model.

It is described in detail so that aortic arch interlayer accumulates left subclavian artery as an example, is first cut near right groin below Mouthful, exposure right femoral artery, under the support of stiffened seal wire, by transport system through arteria iliaca communis, abdominal aorta, aorta pectoralis, Descending aorta send chest overlay film frame to aortic arch proximal end, anchorage zone between left subclavian artery and left common carotid artery it Between, part discharges the main overlay film frame of chest, and left subclavian artery is completely covered holder overlay film, and left subclavian artery blood flow is hindered It is disconnected.It is punctured through the nearly left vertebral artery position of arteria brachialis, conveys the intracavitary orthotopic fenestration sting device of the utility model, complete overlay film branch Frame drives in the wrong direction orthotopic fenestration, and intracavitary orthotopic fenestration sting device is described in detail as follows：

Embodiment 1, the main technical problems to be solved of the present embodiment be accurately control paracentesis depth, paracentesis depth it is adjustable and It can lock and puncture, otherwise address punctures accurate problem, that is, ensures the puncture position heart in the blood vessel.It is a kind of as shown in Fig. 1-17 Intracavitary orthotopic fenestration sting device includes the puncture needle component 200 of foley's tube 100 and coaxial package in foley's tube 100； The foley's tube 100 includes the sacculus push rod 101 for carrying at least two cavitys, is arranged in 101 distal end of sacculus push rod Foley's tube seat 103 in 101 proximal end of sacculus push rod is arranged in sacculus utricule 102；The puncture needle component 200 includes puncturing Push rod 202 is arranged in the piercing needle 201 for puncturing 202 distal end of push rod, punctures handle 205；The puncture handle 205 wraps Proximal handle 252 and distal handle 251 are included, the distal handle 251 is fixedly connected or is detachably fixed with foley's tube seat 103 Connection, the proximal handle 252 are connect with push rod 202 is punctured, and the proximal handle 252 is arranged along distal handle 251, described It is equipped between distal handle 251 and proximal handle 252 for controlling 201 paracentesis depth of piercing needle and locking piercing needle 201 puncture control mechanism 206.

As shown in figure 3, foley's tube 100 includes mainly sacculus utricule 102, sacculus push rod 101 and foley's tube seat 103.In order to assist accurately puncturing, after branch vessel expansion, point of puncture is set to be located at the middle position of branch vessel opening, preferably The selection of foley's tube 100 is located at after sacculus utricule 102 is full and divides from center foley's tube 100,101 head end of sacculus push rod The center of branch vessel.Refer to from center：Sacculus utricule 102 is full to make 101 head end of sacculus push rod is full to be located at The center of branch vessel, it is more accurate when puncture in this way, it is not easy to accidentally injure surrounding tissue.In order to ensure sacculus utricule 102 can form from center, then the sacculus utricule 102 is non-compliance or semi-compliant sacculus utricule 102, i.e., the described sacculus capsule Body 102 using nylon elastomer either non-compliance or semi-compliant made of the materials such as polyurethane elastomer sacculus capsule Body, non-compliance or semi-compliant sacculus utricule 102 can to avoid in the branch vessel of distortion sacculus utricule 102 there is spend more Deformation, to keep 101 head end of sacculus push rod to be located at the center of branch vessel after sacculus utricule 102 is full；It is described 102 shape of sacculus utricule is axially symmetric structure, preferably taper, ellipse or spherical shape, and spherical balloon capsule is used in the present embodiment Body 102,102 diameter of sacculus utricule are slightly larger than the diameter dimension of branch vessel, by the radial pressure of blood vessel after its is adherent, Gradually become ellipse.

As shown in Figure 2,3, sacculus utricule 102 is attached to 101 far-end of sacculus push rod, 101 distal end of sacculus push rod Head end is located at outside sacculus utricule 102 so that puncture needle component 200 can be stretched out from the head end of 101 distal end of sacculus push rod.

As shown in figs. 4 through 10, the sacculus push rod 101 includes at least a guidewire lumen 110 and a full chamber 111, institute It states piercing needle 201 and punctures push rod 202 and be installed in the guidewire lumen 110.Using the foley's tube of multi-lumen tube structure 100, the problem of relative displacement can be easy to happen to avoid the inner and outer tubes of coaxial saccule conduit in the prior art, compared to coaxial The foley's tube 100 of structure, during push, sacculus utricule 102 is unlikely to deform the utility model, has preferably push Property.

As shown in figs. 4 through 10, in order to enable piercing needle 201 and puncture push rod 202 are easy to transport in guidewire lumen 110 It is dynamic, in general, 110 diameter of guidewire lumen is between 0.35-2.0mm, it is smooth for piercing needle 201 and puncture push rod 202 Pass through, and the cross section of guidewire lumen 110 is the curve forms such as circle, ellipse, circular.Guidewire lumen 110 can be located at The center of sacculus push rod 101, can also deviate centrally disposed, and the quantity of full chamber 111 is not construed as limiting, and can be arranged one A or multiple, position can be arranged in 110 side of guidewire lumen, or around guidewire lumen 110, fill the cross-sectional shape of chamber 111 It can be round, can also be the arbitrary shape arranged according to the cross-sectional shape around guidewire lumen 110.Sacculus push rod 101 can be the integral structure that disposal molding forms guidewire lumen 110 and full chamber 111, can also be two or more tubuloses The structure that structure is fixed together by being bonded or welded mode, while being suit or overlay film in two or more tubular structures To increase the fixation between them.

As shown in Fig. 3,4-10,111 distal end of full chamber and 102 unicom of sacculus utricule fill the connection of 111 proximal end of chamber Equipped with the full head 104 for being filled to sacculus utricule 102.The full head 104 is used for through full chamber 111 to sacculus utricule 102 are filled, and are filled head 104 and are arranged on foley's tube seat 103, for connecting full liquid with compression pump.

As shown in figure 11, the primary structure of puncture needle component 200 includes puncturing push rod 202, piercing needle 201 and puncturing Handle 205.It effectively and safely being punctured to realize, piercing needle 201 answers at least one inclined-plane and hollow cavity, in Diameter should be at least more than 0.35mm, in general, 201 of length no more than 10mm of piercing needle, and piercing needle 201 is adopted in the present embodiment Use sterile hypodermic needle for single use.

The piercing needle 201 and puncture push rod 202 are designed with hollow closed cavity, the hollow closed cavity connection of the two Logical, hollow closed cavity internal diameter is usually less than 0.35mm.It punctures push rod 202 and requires that both there is certain compliance, comply with Vascular bending is compressed axially and stretches with lower, in order to be conveyed in curved blood vessel, while should also have certain branch Support force, to prevent from giving a discount in piercing process, therefore the push rod 202 that punctures is tube body flexible and with support force.Energy It realizes and punctures there are many 202 material with the above characteristics of push rod and structures, metal material or high molecular material may be used Manufactured tube body with closing inner chamber, such as stainless steel tube, titanium alloy tube, polyamide or polyurethane tube etc..

In the present embodiment, as illustrated in figs. 13-15, punctures the part that push rod 202 is connected with piercing needle 201 and use preferably For the bourdon tube 221 of overlay film 220, overlay film 220 closes bourdon tube 221, forms hollow closed cavity, rear portion is closed tube.It wears It pierces in push rod 202, the length of the bourdon tube 221 of overlay film 220 determines according to actual needs, in the proximal end connection of bourdon tube 221 Empty closed tube punctures the bourdon tube 221 that push rod 202 can also be entirely overlay film 220.General bourdon tube 221 can be with By sub-thread silk, can also be formed by multiple thread strands coiling, 221 mechanical property of bourdon tube can according to the quantity of silk, winding pitch and The parameters such as the cross section of multiple thread strands are adjusted；The internal diameter size of syringe needle, the present embodiment is not to be exceeded in the internal diameter size of push rod With puncture push rod 202 by being welded to connect, inside and outside wall seamlessly transits middle piercing needle 201；In order to realize injection contrast agent, The puncture push rod 202 carries hollow closed cavity.The material of the present embodiment overlay film 220 may be used polytetrafluoroethylene (PTFE), gather Either polyurethane etc. material is made through hot melt or pyrocondensation in bourdon tube 221 for ethylene glycol terephthalate, polyamide On, make piercing needle 201 and puncture 202 close encapsulation of push rod, after puncturing successfully, by puncture 202 proximal end of push rod to It punctures and injects contrast agent in the hollow closed cavity of push rod 202, contrast agent reaches piercing needle 201, in fluoroscopic apparatus Lower confirmation piercing needle 201 has been in that main body is intravascular, while overlay film 220 advantageously reduces the axial stretching of bourdon tube 221 And compression, it improves push rod and punctures support force.

As shown in Figure 2,3, described to puncture the lining being coated in push rod 202 for reinforcing puncturing 202 support force of push rod Silk 203.Lining silk 203 provides support force for puncturing push rod 202 in piercing process, prevents from puncturing push rod 202 because of support Power is insufficient and gives a discount, cause to puncture unsuccessful or accidentally injures surrounding tissue, and lining silk 203 includes an elastic lead screw and one can It is formed with the lining silk seat 232 that handle 205 assembles is punctured, the lead screw of lining silk 203 is titanium-nickel wire in the present embodiment, and lining silk seat 232 is The head end of public Rule, lining silk 203 passes through round end, and lining silk 203 is inserted into piercing needle 201 and punctures the inner cavity of push rod 202, Its head end is in 201 position of piercing needle, and does not expose 201 incline position of piercing needle, public Rule and the end for puncturing handle 205 End female Luer is assembled together.

The proximal handle 252 is moved axially along distal handle, i.e., the proximal handle 252 is installed on the distal handle Outside the distal handle 251 and along distal end hand in 251 and along the axial movement of distal handle 251 or the proximal handle 252 Handle 251 moves axially, and the control mechanism 206 that punctures includes the maximum being arranged between proximal handle 252 and distal handle 251 Stroke control assembly 260 and paracentesis depth locked component 261.By adjusting the opposite position of proximal handle 252 and distal handle 251 It sets, and then realizes that puncture needle head stretches out the length of 100 head end of foley's tube, by adjusting the position of limit, realize and puncture deeply It spends adjustable, while preventing proximal handle 252 from withdrawing.Puncturing control mechanism 206, there are many structures, illustrate individually below：

As shown in figure 12 to puncture the first embodiment of control mechanism 206, present embodiment can be with fast driving reality It now punctures, and realizes quantitative venipuncture.The range control assembly 260 includes that setting is in proximal handle 252 or remote The stroke groove 260a on handle 251, corresponding distal handle 251 or proximal handle 252 is held to be equipped with limited block 260b；It is described Stroke groove 260a is suitable to puncture the axial setting of push rod 202, and the limited block 260b cooperations are slided in stroke groove 260a and it Sliding maximum distance is to allow the depth capacity of lancet puncture, and depth capacity is determined according to blood vessel diameter, typically not greater than 40mm.The transverse width of stroke groove 260a is slightly larger than the transverse width of limited block 260b, the two clearance fit or is slidably matched.

The paracentesis depth locked component 261 is that multiple position and lock slot 261a are arranged on 252 control unit of proximal handle, right The distal handle 251 answered is equipped with springy locking member 261b, and the springy locking member 261b elastic tops are pressed in position and lock slot Piercing needle position is locked in 261a, in outer power drive proximal handle 252 so that springy locking member 261b determines in different It is slided between the lock slots 261a of position.Position and lock slot 261a from distal end to proximal end in proximal handle 252 interval be uniformly arranged it is more A, setting quantity is related with required distance is adjusted with depth needed for puncture.The setting of paracentesis depth locked component 261 be in order to Puncture needle component is locked after puncture, and by adjusting the mutual of position and lock slot 261a and springy locking member 261b Position, to adjust paracentesis depth.The position of adjustment springy locking member 261b before puncturing, springy locking member 261b cooperations closer to In the position and lock slot 261a of distal end, then paracentesis depth is bigger, conversely, paracentesis depth is small.Proximal handle 252 is equipped with scale, Paracentesis depth is several fixed values, for showing and adjusting paracentesis depth, realizes ration puncture.

Position and lock slot 261a is the curved surface slot that can be slid in and out, preferably semi-spherical grooves, the depth of position and lock slot 261a Degree, which is subject to, to be conducive to lock proximal handle 252, does not make specific size requirement.Springy locking member 261b, can be with there are many structure Directly it is whole elastic structure, can also be that front end is equipped with elongated insertion part 266, rear portion connects elastomer 267, elastomer 267 Spring, elongated insertion part 266 can be selected to be fixed on spring, elongated insertion part 266 is pressed in position and lock slot 261a by spring extension, By axial force, elongated insertion part 266 is bounced back by position and lock slot 261a curved surface cell wall top pressures, is taken off from position and lock slot 261a Go out, next position and lock slot 261a is slid into along proximal handle 252.Elastomer 267 is externally provided with press fitting nut 268, is pressed spiral shell Cap 268 is for adjustment spring elastic force and locking piercing needle position.

As shown in figs. 16-18, to puncture second of embodiment of control mechanism 206, present embodiment paracentesis depth is Continuously adjustable, it may be implemented more accurately to puncture.The paracentesis depth locked component 261 includes limit in distal handle The proximal handle 252 of actuating sleeve 269 on 251, corresponding actuating sleeve 269 is equipped with sliding shoe 268, the sliding shoe 268 and drive Dynamic set 269 is engaged by screw thread, and rotation actuating sleeve 269 drives sliding shoe 268 to slide axially along push rod 202 is punctured.Actuating sleeve 269 inner walls are equipped with internal thread 269a, and the external screw thread 268a being arranged with 268 top of sliding shoe is engaged.The internal thread of actuating sleeve 269 269a length is not less than maximum paracentesis depth.

The range control assembly 260 includes the stroke groove 260a that the distal handle 251 is equipped with, the stroke Slot 260a is along the axial setting of push rod 202 is punctured, and the inside and outside perforations of stroke groove 260a are so that the sliding shoe 268 passes through stroke groove 260a is engaged with 269 screw thread of actuating sleeve, the cooperation of the sliding shoe 268 sliding and its sliding maximum distance in stroke groove 260a To allow the depth capacity of lancet puncture.Transverse width of the transverse width of stroke groove 260a slightly larger than limited block 260b, two Person's clearance fit is slidably matched.On the other hand stroke groove 260a is used for limit slippage block on the one hand for controlling paracentesis depth 268 rotation is prevented when rotating actuating sleeve 269, and sliding shoe 268 rotates.Sliding shoe 268 can be integrated with proximal handle 252 Structure, can also both be fixed together.

Implementation process：Before branch vessel is capped, orthotopic fenestration device is rinsed respectively using heparin or physiological saline Tool pack assembly, and instrumentarium is vented, percutaneous puncture is established by sheath between target position and point of puncture along J-type seal wire Transfer passage, exchange sacculus silk-guiding (0.014 " or 0.018 ").Then in vitro by Puncture needle sleeve into foley's tube 100 Chamber, and the head end of 200 distal handle 251 of puncture needle component is made to be connected with the outlet of 100 guidewire lumen 110 of foley's tube, it is ensured that it wears Pricker head 201 is withdrawn to 100 distal end of foley's tube, along seal wire, is pushed forward, until being reached from the ends foley's tube 100TIP The ends outer sheath TIP；Recession outer sheath, makes sacculus stretch out the ends outer sheath TIP entirely, from full mouth Filled Balloon, it is made to be close to left lock Arterial blood tube wall under bone；

Under the auxiliary of medical image, the paracentesis depth needed is determined, adjust the stroke limit of distal handle 251, determine Proximal handle 252 and 251 drivable stroke of distal handle, seal wire of dropping back；Quickly driving proximal handle 252, puncture needle will Holder overlay film is punctured, by the relative position of locking nut stationary remote handle 251 and proximal handle 252 to keep puncture needle Lining silk 203 is withdrawn from position, and the cavity by puncturing push rod 202 injects contrast agent, under fluoroscopic apparatus, confirms and punctures Whether syringe needle 201 has arrived in aorta；Seal wire is pushed to master along piercing needle 201 and the cavity for puncturing push rod 202 Artery, piercing needle 201 of dropping back, takes out puncture needle component 200, and pressure release sacculus utricule 102 then takes out foley's tube 100, builds It stands outer sheath and seal wire indwelling in original position.Dilating sacculus is delivered to point of puncture using this channel gradually to expand, is realized in situ Windowing determines windowing size, exchange guidewire and indwelling original position under the auxiliary of medical image, exits outer sheath, is subsequent branch Frame implantation is prepared.

Embodiment 2, the present embodiment mainly solving the technical problems that：Push rod 202 is punctured to be not easy to give a discount, puncture more Collection neutralizes effective problem.

A kind of intracavitary orthotopic fenestration sting device, including foley's tube 100 and coaxial package are in foley's tube 100 Puncture needle component 200；The foley's tube 100 include at least two cavitys sacculus push rod 101, setting pushed away in sacculus It send the sacculus utricule 102 of 101 distal end of bar, the foley's tube seat 103 in 101 proximal end of sacculus push rod is set；The puncture needle group Part 200 includes puncturing push rod 202, being arranged in the piercing needle 201 for puncturing 202 distal end of push rod, puncture handle 205；It is described It is tube body flexible and with support force to puncture push rod 202, is coated in the puncture push rod 202 for reinforcing puncturing The lining silk 203 of 202 support force of push rod.The concrete structure of above-mentioned component is the same as embodiment 1.

Wherein 100 structure of foley's tube can be consistent with embodiment 1, including sacculus push rod 101 and sacculus utricule 102, But sacculus utricule 102 in the prior art can also be used, details are not described herein with embodiment 1 for remaining structure.

Puncture push rod 202, piercing needle 201, serve as a contrast silk 203 structure also with embodiment 1, details are not described herein.

Compared to embodiment 1, puncture control mechanism 206 is selective structure, you can punctures control mechanism 206 to have, also may be used Not have.Distal handle 251 and proximal handle 252 can be combined into one can drive puncture needle component to be punctured as one Component.

Claims (13)

1. a kind of intracavitary orthotopic fenestration sting device, it is characterised in that：Including foley's tube and coaxial package in foley's tube Puncture needle component；

The foley's tube includes the sacculus push rod for carrying at least two cavitys, the sacculus capsule in sacculus push rod distal end is arranged Foley's tube seat in sacculus push rod proximal end is arranged in body；

The puncture needle component includes puncturing push rod, being arranged in the piercing needle for puncturing push rod distal end, puncture handle；

The puncture handle includes proximal handle and distal handle, and the distal handle is fixedly connected or removable with foley's tube seat It unloads and is fixedly connected, the proximal handle is connect with push rod is punctured, and the proximal handle is arranged along distal handle, the distal end hand It is equipped between handle and proximal handle for controlling lancet puncture depth and locking the puncture control machine of lancet puncture depth Structure.

2. intracavitary orthotopic fenestration sting device according to claim 1, which is characterized in that the proximal handle is along distal end hand Handle moves axially, and the puncture control mechanism includes the range control assembly being arranged between proximal handle and distal handle With paracentesis depth locked component.

3. intracavitary orthotopic fenestration sting device according to claim 2, which is characterized in that the range control assembly Including be arranged in proximal handle or distal handle on stroke groove, corresponding distal handle or proximal handle are equipped with limit Block；The stroke groove is along push rod axially setting is punctured, and the limited block coordinates the sliding in stroke groove and its sliding is maximum Distance is to allow the depth capacity of lancet puncture.

4. intracavitary orthotopic fenestration sting device according to claim 2, which is characterized in that the paracentesis depth locked component For multiple position and lock slots are arranged on proximal handle control unit, corresponding distal handle is equipped with springy locking member, the elasticity Locking piece elastic top, which is pressed in position and lock slot, will puncture pin position locking, in outer power drive proximal handle so that elastic locking Part slides between different position and lock slots.

5. intracavitary orthotopic fenestration sting device according to claim 2, which is characterized in that the paracentesis depth locked component Including limiting the actuating sleeve in distal handle, the proximal handle of corresponding actuating sleeve is equipped with sliding shoe, the sliding shoe and drive Dynamic set is engaged by screw thread, and rotation actuating sleeve driving sliding shoe slides axially along push rod is punctured.

6. intracavitary orthotopic fenestration sting device according to claim 5, which is characterized in that the range control assembly Including the stroke groove that the distal handle is equipped with, the stroke groove is arranged along push rod axial direction is punctured, and the sliding shoe is worn Overtravel slot is engaged with driving external threading, and the sliding shoe cooperation is slided in stroke groove and it slides maximum distance to allow The depth capacity of lancet puncture.

7. the intracavitary orthotopic fenestration sting device according to claim 1-6 any one, which is characterized in that the puncture needle Head and puncture push rod are designed with hollow closed cavity, the hollow closed cavity unicom of the two.

8. intracavitary orthotopic fenestration sting device according to claim 7, which is characterized in that the puncture push rod is bendable Tube body bent and with support force.

9. intracavitary orthotopic fenestration sting device according to claim 8, which is characterized in that the puncture push rod, which is equipped with, to be covered The hollow closed cavity of film.

10. intracavitary orthotopic fenestration sting device according to claim 7, which is characterized in that in the puncture push rod The lining silk for reinforcing puncturing push rod support force is coated in empty closed cavity.

11. the intracavitary orthotopic fenestration sting device according to claim 1-6 any one, which is characterized in that the sacculus Push rod includes at least a guidewire lumen and a full chamber, and the piercing needle and puncture push rod are installed on the guidewire lumen In, the full chamber distal end and sacculus utricule unicom, full chamber proximal end is connected with the full head for being filled to sacculus utricule.

12. the intracavitary orthotopic fenestration sting device according to claim 1-6 any one, which is characterized in that the sacculus Utricule is non-compliance or semi-compliant sacculus utricule.

13. a kind of intracavitary orthotopic fenestration sting device, it is characterised in that：Including foley's tube and coaxial package in foley's tube Puncture needle component；

The foley's tube includes the sacculus push rod for carrying at least two cavitys, the sacculus capsule in sacculus push rod distal end is arranged Foley's tube seat in sacculus push rod proximal end is arranged in body；

The puncture needle component includes puncturing push rod, being arranged in the piercing needle for puncturing push rod distal end, puncture handle；

The push rod that punctures is tube body flexible and with support force, is coated in the puncture push rod for reinforcing wearing Pierce the lining silk of push rod support force.