CN205458944U - Intervene medical instrument , conveyor and intervene medical system - Google Patents

Abstract

The utility model provides an intervene medical system, it is personally experienced sth. Part of the body including being equipped with the apparatus of tieing the head and the transport cable that is equipped with cable end portion. Intervene medical system still include movably cover in carry the external locking sleeve pipe of cable. Cable end portion includes that at least one is roughly towards keeping away from axis extend's closure piece in the cable end portion. The closure piece has elasticity. The radial constraint of locking sheathed tube down tie the head butt closure piece and make tie the head and link to each other with cable end portion, and work as the locking sleeve pipe is relative carry the motion of the cable body to no longer radially retraining during the closure piece, closure piece bullet leaves tie the head and make the apparatus with carry the separation of the cable body.

Description

Interventional medical device, conveyer device and intervention medical system

Technical field

This utility model relates to insertion type medical instruments field, particularly relates to one and is placed into human body and selectes portion Interventional medical device at Wei, is delivered to the conveyer device at this selected position by this interventional medical device, and Intervention medical system including this interventional medical device and conveyer device.

Background technology

Interventional therapy refers under the guiding of certain medical imaging device, carries material, Medical treatment device by conduit Tool and medicine complete a kind of means to disease treatment to this not mode of operating on of therapentic part.Get involved at present Treatment has become the three big Modern medical therapy mutually arranged side by side with traditional internal medicine treatment, surgical operation therapy One of means.Heart and vascular disorder are the most widely used fields of interventional therapy.

Compared with traditional internal medicine treatment, it is inaccessiable that interventional therapy has reached conventional Drug therapy institute Clinical effectiveness, has the operating trend of replacement in some situation.Such as, radiofrequency ablation therapy paroxysmal Supraventricular tachycardia, atrial fibrillation, atrial flutter, various premature beat, room speed；The congenital heart treated by closure equipment Disease of ZANG-organs ductus arteriosus is not not busy, II hole central type atrial septal defect, and balloon angioplasty mitral stenosis and lung move The diseases such as arteries and veins lobe is narrow, Stent Implantation coronary heart disease and various angiostenosiss etc., pacemaker treats mistake aroused in interest Slow, prevention is died suddenly, is treated heart failure etc., and some disease fully achieves the effect of radical cure.Aforementioned diseases is The no longer traditional medicine of simple employing and surgical operation therapy.Compared with surgical operation, interventional therapy is had Outstanding advantages be: (1) wound is little, painful few.Owing to not operating on, operation is only by 2～3 millimeters of thicknesses Conduit complete, therefore wound is the least.(2) recover fast.Little just because of wound, thus extensive after operation in patients The most quickly, within after the operation in patients of usual cardiovascular diseases's interventional therapy 24 hours, getting final product out-of-bed activity, daily life is complete Entirely can take care of oneself.(3) good effect, safety.Owing to interventional therapy is not operated on, without general anesthesia, do not have The processes such as the healing of wound, therefore avoid in surgical operation, many complication that Post operation is commonly encountered, peace Full property is greatly improved.(4) meet modern and require hope attractive in appearance.Owing to operation is not operated on, after treatment not Leave over wound scar, therefore can't see at PTCA or and STENTS the most at all.This point be especially suitable for child, Women and outward appearance, appearance are required higher industry practitioner.

Visible, utilize percutaneous interventional technique to carry out the suitable application area of disease treatment more and more extensively, generally use The Therapeutic Method of intubation intervention, can place various material, apparatus and medicine to human body heart, Artery and vein vascular.Such as, can be by insertion type treatment by valve repair apparatus, heart defect amplatzer, Vascular plug, vascular filter, lung volume reduction apparatus etc. is placed at select location.

At present insertion type treatment generally uses threaded realize insertion type medical apparatus and instruments and conveying cable body it Between connection.It is rotationally advancing direction according to screw thread, screw thread can be divided into left hand thread and right-handed thread.When When interventional medical device and conveying cable body include right-handed thread, turn clockwise conveying cable body, then get involved medical treatment Apparatus links together with conveying cable body, then needs to rotate conveying cable counterclockwise to the connection released between the two Body.But, due to the complexity of the organizations of human body such as heart, artery and vein vascular system, bronchi, therefore, Interventional medical device is pushed to human body and specifies in region process, meeting between interventional medical device and conveying cable body Occur push-and-pull, bend, torsion etc. interacts.When occurring reversing counterclockwise, interventional medical device and defeated The mate sending screwing zone between cable body reduces so that interventional medical device arrives human body appointment The risk come off is had before region；When occur reverse clockwise time, interventional medical device with conveying cable body it Between the mate of screwing zone increase, even excessively tight due to engagement, rubbing between internal and external threads Wiping power exceedes certain threshold value, occurs that interventional medical device is difficult to separate during follow-up freeing with conveying cable body, Cause operative failure.All working the mischief patient occurs in both the above situation, increases the risk of operation.

Utility model content

Based on this, it is necessary to for medical apparatus and instruments in prior art and the connectivity problem between conveying cable body end, There is provided a kind of insertion type treatment with getting involved medical system, insertion type medical apparatus and instruments and the conveying of insertion type medical apparatus and instruments Device.

This utility model provides one to get involved medical system, including being provided with the apparatus of bolt head and being provided with cable end portion Conveying cable body.Described intervention medical system also includes being placed on the locking set that described conveying cable is external movably Pipe.Described cable end portion includes that at least one is generally towards the locking piece extended away from axis, described cable end portion.Institute State locking piece and there is elasticity.Under the radial direction of described lock collar fetters, described bolt head abuts described locking piece And make described bolt head be connected with cable end portion, and when described lock collar the most described conveying cable body moves to No longer described in radial constraint during locking piece, described locking piece bounces off described bolt head and makes described apparatus and institute State conveying cable body to separate.

Wherein in an embodiment, the quantity of the locking piece in described cable end portion is multiple, multiple described cable ends The locking piece in portion surrounds a stopper slot, and under the radial direction of described lock collar fetters, described bolt head is housed in Described stopper slot make described bolt head be connected with cable end portion.

Wherein in an embodiment, the sidewall of described bolt head is provided with at least one sealed groove, when described bolt When head is connected with cable end portion, the sealed groove of described bolt head at least contains at least the one of described cable end portion Individual locking piece.

Wherein in an embodiment, axially extending along described bolt head of the sealed groove of described bolt head, and Run through the proximal face of described bolt head.

This utility model provides one to get involved medical system, including being provided with the apparatus of bolt head and being provided with cable end portion Conveying cable body.Described intervention medical system also includes being placed on the locking set that described conveying cable is external movably Pipe.Described bolt head includes at least one sealed groove.The sealed groove of described bolt head runs through described bolt head Proximal face.Described cable end portion includes that at least one is sealed generally towards extend away from axis, described cable end portion Sheet.The locking piece in described cable end portion has elasticity.Described bolt head under the radial direction of described lock collar fetters Described sealed groove in contain at least one locking piece in described cable end portion and make described bolt head and cable end Portion is connected, and when described lock collar the most described conveying cable body moves to no longer cable end portion described in radial constraint Locking piece time, the locking piece in described cable end portion ejects from the sealed groove of described bolt head and makes described device Tool is separated with described conveying cable body.

Wherein in an embodiment, described bolt head includes multiple locking piece spaced apart from each other, described bolt head The sealed groove in portion is between adjacent two described locking pieces of described bolt head, in the footpath of described lock collar Under constraint, each locking piece in described cable end portion is all housed in and makes in a sealed groove of described bolt head Described bolt head is connected with cable end portion.

Wherein in an embodiment, the near-end of the sealed groove of described bolt head is in described bolt head circumference Length is less than its far-end length in described bolt head circumference.

Wherein in an embodiment, the sealed groove of described bolt head includes T-type structure, and described T junction The structure far-end a length of described T-type structure in described bolt head circumference maximum in described bolt head circumference Length.

Wherein in an embodiment, described intervention medical system also includes that is contained in a described conveying cable body Interior limited part, when described bolt head is connected with cable end portion, the locking piece in described cable end portion is also clamped in institute State between limited part and described lock collar.

Wherein in an embodiment, described conveying cable body includes the cable body section of hollow, the lock in described cable end portion Closing sheet and be located at the far-end of described cable body section, the monolateral gap between described conveying cable body and described limited part is less than The wall thickness of described cable body section.

Wherein in an embodiment, the thickness of the locking piece in described cable end portion is uniform.

Wherein in an embodiment, the near-end of the sealed groove of described bolt head is in described bolt head circumference Length is less than its far-end length in described bolt head circumference, and the near-end of the locking piece of described bolt head is along institute The length stating bolt head circumference is more than its far-end length along described bolt head circumference.

Wherein in an embodiment, described bolt head includes the main paragraph of hollow, described bolt head sealed Sheet is located in the proximal face of described hollow body section.

Wherein in an embodiment, described main paragraph and described bolt head locking piece be by same The integrative-structure of the cleaved formation of blank pipe.

Wherein in an embodiment, the outer surface of the locking piece of described bolt head is cambered surface, and described bolt head The overall external diameter that the described locking piece in portion is constituted is more than the external diameter of described main paragraph；Described lock collar is remote The portion end surface of end forms at least one accommodating grooves to described lock collar near-end depression, when described locking set Caliber is when the locking piece fettering described cable end portion, and the locking piece of described bolt head is at least partially housed in described In accommodating grooves.

This utility model provides a kind of interventional medical device, including being positioned at the bolt head of its near-end, and described bolt head The sidewall in portion is provided with at least one sealed groove.

Wherein in an embodiment, axially extending along described bolt head of the sealed groove of described bolt head, and Run through the proximal face of described bolt head.

This utility model provides a kind of interventional medical device, including being positioned at the bolt head of its near-end, and described bolt head Portion includes at least one sealed groove, and described sealed groove runs through the proximal face of described bolt head.

Wherein in an embodiment, the near-end of described sealed groove is less than it along the length of described bolt head circumference Far-end is along the length of described bolt head circumference.

Wherein in an embodiment, described sealed groove includes T-type structure, and described T-type structure far-end exists The greatest length in described bolt head circumference of a length of described T-type structure in described bolt head circumference.

Wherein in an embodiment, described locking piece is T-shaped, and its near-end is along described bolt head circumference A length of described locking piece along described bolt head circumference greatest length.

Wherein in an embodiment, described bolt head includes that the main paragraph of hollow, described bolt head include many Individual locking piece spaced apart from each other, the sealed groove of described bolt head is positioned at adjacent two described locks of described bolt head Closing between sheet, the locking piece of described bolt head is located in the proximal face of described hollow body section.

Wherein in an embodiment, described main paragraph and described locking piece are cleaved by same hollow pipe The integrative-structure formed.

Wherein in an embodiment, the outer surface of described locking piece is cambered surface, and described bolt head is described The overall external diameter that locking piece is constituted is more than the external diameter of described main paragraph.

This utility model provides the conveyer device of a kind of interventional medical device, including conveying cable body.Described conveying Cable body includes the cable end portion removably connected with described interventional medical device.Described conveyer device also includes moving It is placed on the lock collar that described conveying cable is external dynamicly.Described cable end portion includes that at least one is generally towards away from institute State the locking piece that axis, cable end portion extends.Described locking piece has elasticity, and described locking piece is in described locking The lower compression of radial direction constraint of sleeve pipe, and move to no longer radially at described lock collar the most described conveying cable body Shape is recovered when retraining described locking piece.

Wherein in an embodiment, the quantity of the locking piece in described cable end portion is multiple, and multiple described cable The locking piece of head is spaced from each other.

Wherein in an embodiment, described locking piece is T-shaped, and its far-end is along described cable end portion circumference A length of described locking piece along described cable end portion circumference greatest length.

Wherein in an embodiment, described locking piece thickness is uniform.

Wherein in an embodiment, described conveyer device also includes that one is contained in described conveying cable body Limited part, described limited part is for being held on described locking piece between the two ordinatedly with described lock collar.

Wherein in an embodiment, described conveying cable body includes the cable body section of hollow, and described locking piece is located at The far-end of described cable body section, the monolateral gap between described conveying cable body and described limited part is less than described cable body The wall thickness of section.

This utility model compared with the prior art, has the advantage that intervention medical system of the present utility model The mode using locking piece sealed realizes the connection between interventional medical device and conveying cable body, it is entirely avoided Threaded mode is used to connect with regard to interventional medical device and conveying cable body, it is ensured that interventional medical device Normal release, reduce operation risk.

Accompanying drawing explanation

Fig. 1 is display effect schematic diagram in one embodiment of this utility model；

Fig. 2 is the structural representation getting involved medical system in one of them embodiment of this utility model；

Fig. 3 is the structural representation of the bolt head of the interventional medical device getting involved medical system in Fig. 2；

Fig. 4 is the schematic diagram of another angle of bolt head of the interventional medical device getting involved medical system in Fig. 2；

Fig. 5 is the structural representation of the cable body of the conveying cable body getting involved medical device in Fig. 2；

Fig. 6 is that the cable body that carries of the intervention medical system in Fig. 2 steps into the view of lock collar；

Fig. 7 is the view that the intervention medical system in Fig. 2 is in the lock state；

Fig. 8 is the partial cutaway schematic view after increasing limited part in intervention medical system in fig. 2；

Fig. 9 is the coupling part in the intervention medical system in Fig. 2 between interventional medical device and conveying cable body Schematic diagram after releasing；

Figure 10 is that in the intervention medical system in Fig. 2, interventional medical device and the connection carried between cable body are complete Schematic diagram after removing；

The schematic diagram of the intervention medical system that Figure 11 provides for another embodiment of this utility model；

Figure 12 is the schematic diagram of the bolt head of the interventional medical device of the intervention medical system in Figure 11；

Figure 13 is showing of another angle of the bolt head of the interventional medical device of the intervention medical system in Figure 11 It is intended to；

Figure 14 is the schematic diagram of the lock collar of the intervention medical system in Figure 11；

Figure 15 is the schematic diagram that this utility model further implements the intervention medical system provided；

Figure 16 is the decomposing schematic representation of the intervention medical system that the another embodiment of this utility model provides；

Figure 17 is the side view of the intervention medical system in Figure 16；

Figure 18 is the combination schematic diagram of the intervention medical system in Figure 16；

Figure 19 is the decomposing schematic representation of the intervention medical system that this utility model a further embodiment provides；

Figure 20 is the side view of the intervention medical system in Figure 19；

Figure 21 is the schematic diagram of the bolt head of the interventional medical device of the intervention medical system in Figure 19.

Detailed description of the invention

Understandable for enabling above-mentioned purpose of the present utility model, feature and advantage to become apparent from, below in conjunction with attached Detailed description of the invention of the present utility model is described in detail by figure.Elaborate much have in the following description Body details is so that fully understanding this utility model.But this utility model can be retouched at this to be much different from The alternate manner stated is implemented, and those skilled in the art can be in the case of this utility model intension Doing similar improvement, therefore this utility model is not limited by following public being embodied as.

It should be noted that when element is referred to as " being fixed on " another element, and it can be directly at another On individual element or element placed in the middle can also be there is.When an element is considered as " connection " another yuan Part, it can be directly to another element or may be simultaneously present centering elements.In the field of intervention, One end near for relative operator is generally referred to as near-end, and the remote one end of relative operator is referred to as far-end.

Also, it should be noted the insertion type medical apparatus and instruments in present embodiment include medical apparatus and instruments main part and The bolt head being connected with described medical apparatus and instruments main part.Described medical apparatus and instruments main part is insertion type medical apparatus and instruments For realizing the part of medical functions, bolt head is that insertion type medical apparatus and instruments is for the portion being connected with conveying cable body Point.

Unless otherwise defined, all of technology used herein and scientific terminology with belong to of the present utility model The implication that those skilled in the art are generally understood that is identical.Institute in description of the present utility model herein The term used is intended merely to describe the purpose of specific embodiment, it is not intended that in limiting this utility model. Term as used herein " and/or " include the arbitrary and all of one or more relevant Listed Items Combination.

Implementation of the present utility model is used for insertion type armarium, as it is shown in figure 1, this armarium At least include getting involved medical system 10.Get involved medical system 10 and include interventional medical device 110, for transferring The conveying cable body 200 of interventional medical device 110.Usual interventional medical device 110 is remote with conveying cable body 200 End 210 connection is placed in conduit 201, migration in the Tissue cavities 101 of patient, until being positioned at selected The connection between conveying cable body 200 and interventional medical device 110 is disconnected behind position, and by interventional medical device 110 are placed into select location implements insertion type treatment.Tissue cavities 101 can be that tissue wall 102 is constituted Cavity, such as, Tissue cavities 101 includes lumen of vessels, enteric cavity, heart chamber, trachea, certain tissue cavity Body 101 can also include each organization internal chamber in the tissue that the treatment of current insertion type can arrive, And tissue any one organization internal chamber interior that future, insertion type treatment can arrive.Carry herein To interventional medical device 110 can be the medical apparatus and instruments of any one interventional therapy, such as, heart lacks Damage stopper, valve repair apparatus, vascular plug, vascular filter, lung volume reduction apparatus etc. medical apparatus and instruments.Defeated Sending the slender body that cable body 200 is treated, such as wirerope, conduit etc. for insertion type, its far-end is used for and Jie Enter medical apparatus and instruments 110 to be connected.Here far-end refers to one end that in Fig. 1, distance operator is farthest, and relative Near-end refers to one end that distance operation is nearest.

Certainly, can understand whether interventional medical device 110 is shifted into clearly for the ease of medical personnel Select location, the most above-mentioned armarium can also include: camera head, display etc..Camera head is put Entering in conduit 201, follow the video data of the far-end shooting Tissue cavities 101 of conduit 201, then this regards Frequency, according in transmission to display, shows corresponding image on interface 103, thus is supplied to medical personnel Insertion type treatment positions data accurately.

In order to avoid causing because of the connectivity problem between interventional medical device 110 and conveying cable body 200 Interventional medical device 110 be difficult to be discharged into correct select location, increase the problems such as medical treatment danger coefficient, In embodiment of the present utility model, improve getting involved medical system 10.Concrete improvement combines accompanying drawing and sees Hereinafter described.

This utility model one embodiment provides a kind of insertion type treatment and gets involved medical system 10.

See also Fig. 2, get involved medical system 10 and include interventional medical device 110 and conveyer device 500. Apparatus 110 includes the bolt head 120 being positioned on Jie's formula medical apparatus and instruments 110.Conveyer device 500 includes carrying cable Body 200 and be placed on conveying cable body 200 and can relatively carry the lock collar 300 that cable body 200 moves axially.Defeated Sending cable body 200 to include can radial compression can self-expand into the cable end portion 211 of naturalness after external force is cancelled.

Seeing also Fig. 3 and Fig. 4, bolt head 120 includes the main paragraph 121 of hollow and along main paragraph 121 At least two first locking piece 123 of circumferentially-spaced distribution.In the circumference of bolt head 120, adjacent two A first sealed groove 125 is formed between one locking piece 123.Each first sealed through bolt head of groove 125 The proximal face of 120, and the length that its near-end is in bolt head 120 circumference less than its far-end at bolt head 120 Length in circumference.

In the present embodiment, the number of the first locking piece 123 is two, and two the first locking pieces 123 are located at master In the proximal face of body section 121, each first locking piece 123 is T-shaped, and its far-end is along bolt head A length of first locking piece 123 of the circumference of 120 is along the greatest length of bolt head 120 circumference.So, in institute State in the circumference of bolt head 120, between two the first locking pieces 123, form two T-shaped first sealed grooves 125. Preferably, in the present embodiment, main paragraph 121 and two the first locking pieces 123 are by same hollow NiTi Manage the integrative-structure of cleaved formation.It is understood that main paragraph 121 and two the first locking pieces 123 Material can also be the metal material that the interventional medical device such as rustless steel or cochrome is conventional.Can also manage Solving, two the first locking pieces 123 can realize same effect to use other machining modes, as The modes such as line cutting, powder metallurgy, casting.It is understood that the shape of the first sealed groove 125 also may be used Think other shapes such as L-type, c-type, can be as desired to design.

Seeing also Fig. 5, the cable end portion 211 of conveying cable body 200 includes the cable body section 213 of hollow and along cable At least two second locking piece 215 of the circumferentially-spaced distribution of body section 213.At least two the second locking piece 215 is equal There is elasticity, can change between compressive state and swelling state, say, that each second locking piece 215 The most all can be with radial contraction (i.e. compressive state), after external force is cancelled, each second locking piece 215 all can recover to naturalness (i.e. swelling state).The thickness uniform one of each second locking piece 215 Cause, and each second locking piece 215 all extends generally towards towards away from axis, cable end portion 211.This practicality is new In type, each second locking piece 215 all refers to each second generally towards extending away from axis, cable end portion 211 Locking piece 215 allows certain of each second locking piece 215 while extending away from axis, cable end portion 211 A little positions are drawn close slightly offset towards axis, cable end portion 211 compared with its neighbouring position, as long as in lock collar 300 Radially under constraint, each second locking piece 215 can be at least partially housed in the first sealed groove 125 will be got involved Medical apparatus and instruments 110 is connected as a single entity with conveying cable body 200.

When at least two the second locking piece 215 is in compressive state, in the circumference in described cable end portion 211, A second sealed groove 217 is formed between adjacent two the second locking pieces 215.Each second sealed groove 217 passes through Wear the far-end end face in cable end portion 211.

In the present embodiment, the number of the second locking piece 215 is two, and two the second locking pieces 215 are located at cable On the far-end end face of body section 213, each second locking piece 215 is T-shaped, and its far-end is along cable body A length of second locking piece 215 of the circumference of 211 is along the greatest length of cable body section 211 circumference.So, extremely When two the second locking pieces 215 are in compressive state, in the circumference in described cable end portion 211, two second locks Close and between sheet 215, form two T-shaped second sealed grooves 217.Preferably, in the present embodiment, cable body section 213 The one knot being cleaved by same hollow NiTi pipe with two the second locking pieces 215 and formed after thermal finalization Structure；When two the second locking pieces 215 are in compressive state, the entirety that two the second locking pieces 215 are constituted External diameter equal to the external diameter of cable body section 213.It is understood that the second locking piece 215 and cable body section 213 Can also be the most separately formed, then connect as one via welding, the bonding or connected mode such as be spirally connected. Will also be appreciated that the second locking piece 215 can also use elastic preferably other metal materials such as cobalt chromium Alloy etc..

It is understood that the shape of the first sealed groove can also be other shapes such as cross, I shape, Now, the near-end of the first sealed groove length in described bolt head circumference is more than or equal to its far-end at bolt Second locking piece of the mating shapes of the length in head circumference, each shape and described first sealed groove is still So can be housed in a corresponding described first sealed groove under the radial direction of described lock collar fetters, with Described bolt head is connected with cable end portion.

Seeing also Fig. 6, lock collar 300 is the tubular body of hollow, its be placed on conveying cable body 200 outer and Can relatively carry cable body 200 to move axially.When the second locking piece 215 of conveying cable body 200 locks set relatively When moving axially of pipe 300, two the second locking pieces 215 are fettered by the radial direction of lock collar 300, can (i.e. compressive state is shown in the state in Fig. 7 to be constrained to cylinder state from swelling state (state 1 see Fig. 7) 3).In the present embodiment, the internal diameter of lock collar 300 is slightly larger than the external diameter of cable body section 213, to guarantee two Second locking piece 215 is in after being compressed completely and can snap in the first sealed groove 125.

Referring to Fig. 8, the conveyer device 500 getting involved medical system 100 also includes a cylindrical limited part 400.Limited part 400 is contained in conveying cable body 200, for supporting the second locking piece 215.When getting involved doctor When treatment system 100 is in the lock state, the far-end of limited part 400 is through the far-end of cable body 211, with lock Determine sleeve pipe 300 and co-operatively the second locking piece 215 is held in outer wall and the lock collar of limited part 400 Between the inwall of 300, with the second locking piece 215 in the case of preventing seldom too much near cable body 211 The Direction distortion of vertical central axis and cause uneven with the first sealed groove 125 para-position, thus cause apparatus 110 And get loose between conveying cable body 200.Preferably, in the present embodiment, conveying cable body 200 and limited part 400 Between monolateral gap less than the wall thickness of cable body section 213, and limited part 400 can relatively carry cable body 200 and move Dynamic.In other embodiments of the present utility model, limited part 400 can omit not.At this utility model Other embodiments in, limited part 400 also can with conveying cable body 200 be fixed as one.

See also Fig. 8, Figure 10 to Figure 11, be in the lock state when getting involved medical system 100, i.e. bolt When head 120 is connected with cable end portion 211, two the second locking pieces 215 are by the radial direction of lock collar 300 Constraint, is constrained to cylinder state (i.e. compressive state) from swelling state, and the second locking piece 215 snaps in first In sealed groove 125.Owing to the far-end of the second locking piece 215 length in cable end portion 211 circumference is more than it The length in cable end portion 211 circumference of near-end, thus, shape between apparatus 110 and conveying cable body 200 Become a connection that relative movement all will not occur in axial and circumference；When lock collar 300 carries relatively Cable body 200 ejects from the first sealed groove 125 to moving to the second locking piece 215 away from apparatus 110 direction Time, apparatus 110 is separated with conveying cable body 200.So, the release process of apparatus 110 is: in locking Keep conveying cable body 200 motionless, along the direction of arrow shown in Fig. 9 (i.e. to away from apparatus 110 side under state To motion) mobile lock collar 300, owing to the second locking piece 215 has elasticity, the second locking piece 215 by Gradually depart from the constraint of lock collar 300 and revert to the horn-like of pre-setting, so that the second locking piece 215 Gradually eject from the first sealed groove 125, when the second locking piece 215 is hit by a bullet from the first sealed groove 125 completely Going out, apparatus 110 is separated (see Figure 10) with conveying cable body 200, reaches to discharge the purpose of apparatus 110.

The interventional medical device 100 of the present embodiment, when bolt head 120 is connected with cable end portion 211, one Two locking pieces 215 snap in a first sealed groove 125 under the radial direction of lock collar 300 fetters, and work as lock Determine sleeve pipe 300 relatively to carry cable body 200 and move to the second locking piece 215 to away from apparatus 110 direction When ejecting in one sealed groove 125, apparatus 110 is separated with conveying cable body 200.So, it is entirely avoided Threaded mode is used to connect apparatus 110 and conveying cable body 200, it is ensured that normally releasing of apparatus 110 Put, reduce medical-risk.Additionally, during Shi Fang, it is only necessary to lock collar 300 carries cable body 200 relatively Eject from the first sealed groove 125 to moving to the second locking piece 215 away from apparatus 110 direction, behaviour Make process the most relatively simple, shorten operating time, reduce the operation risk of sufferer.

It is understood that in other embodiments, the second locking piece 215 or the first sealed groove 125 Number can also be one, as long as under the radial direction of lock collar 300 fetters, the second locking piece 215 can be at least It is partially housed in the first sealed groove 125 and interventional medical device 110 is connected with conveying cable body 200. Will also be appreciated that in other embodiments, under the radial direction of lock collar 300 fetters, each first lock Close in groove 125 and can also contain two or more second locking pieces 215, as long as Medical treatment device can will be got involved Tool 110 is connected with conveying cable body 200, and such as two or more second locking pieces 215 are connected to one The cell wall of individual first sealed groove 125 or be fastened in a first sealed groove 125.

Refer to Figure 11, intervention medical system 10a that another embodiment of this utility model provides and intervention medical treatment System 10 is substantially the same, and it includes insertion type medical apparatus and instruments 110a, conveying cable body 200a and is placed on conveying Cable body 200a and can relatively carry lock collar 300a that cable body 200a moves axially.

See also bolt head 120a and the bolt head 120 generally phase of Figure 12 and Figure 13, apparatus 110a With, also include the main paragraph 121a of hollow and lock along at least two first of the circumferentially-spaced distribution of main paragraph 121a Close sheet 123a；In the circumference of described bolt head 120a, between adjacent two the first locking piece 123a, form one Individual first sealed groove 125a；Difference is, the outer surface of the first locking piece 123a is cambered surface, and at least The overall external diameter that two the first locking piece 123a the are constituted external diameter more than main paragraph 121a, to prevent apparatus During 110a implants human body, the near-end scratch tissue of apparatus 110a.In the present embodiment, main paragraph 121a and the first locking piece 123a is separately formed, is fixed as one by the method for welding the most again.Can manage Solving, main paragraph 121a and the first locking piece 123a can also be by other methods of attachment such as bonding, to be spirally connected Fix as one.Preferably, bolt head 120a can be one-body molded, such as can use car, milling, brill, One whole block material is processed into bolt head 120a by the machining modes such as mill, the most such as, can use other molding Mode (such as powder metallurgy, casting etc.) forms bolt head 120a.

Conveying cable body 200a is identical with conveying cable body 200, does not repeats them here.

Seeing also Figure 14, lock collar 300a is substantially the same with lock collar 300, and difference exists In: the portion end surface of lock collar 300a far-end forms at least two interval to lock collar 300a near-end depression The U-shaped accommodating grooves 301a of distribution.Accommodating grooves 301a is at lock collar 300a constraint conveying cable body During second locking piece of 200a, house described first locking piece 123a, such that it is able to reduce lock collar 300a External diameter.

Refer to Figure 15, intervention medical system 10b that this utility model another embodiment provides and intervention medical treatment System 10 is substantially the same, and it includes insertion type medical apparatus and instruments 110b, conveying cable body 200b and is placed on conveying Cable body and can relatively carry the lock collar (not shown) that cable body 200b moves axially.

The bolt head 120b of apparatus 110b includes main paragraph 121b and the linkage section being connected with main paragraph 121b 123b.In the present embodiment, main paragraph 121b and linkage section 123b is the column of hollow.It is appreciated that , in other embodiments, linkage section 123b can also be solid column.

The structure of conveying cable body 200b is substantially the same with the structure of conveying cable body 200, and difference is, The inner surface of the second locking piece 215b of conveying cable body 200b has done roughening treatment, to increase linkage section 123b And the frictional force between the second locking piece 215b.

Lock collar is substantially the same with lock collar 300, and difference is, locks according to actual needs The thickness of sleeve pipe 300d and size can be differently configured from thickness and the size of lock collar 300, do not repeat them here.

Company as the lock collar radially second locking piece 215b to bolt head 120b of constraint conveying cable body 200b During the sidewall of the section of connecing 123b, (the second locking piece 215b surrounds one under the radial direction of lock collar fetters can When housing the stopper slot of linkage section 123b), have between the second locking piece 215b and the sidewall of linkage section 123b There is radial pressure, thus produce between the second locking piece 215b and linkage section 123b and prevent from carrying cable body 200b Frictional force with apparatus 100b relative movement, it is achieved the connection between conveying cable body 200b and apparatus 100b.

It is understood that roughening can also be done on the sidewall of linkage section 123b processes that to strengthen second sealed Frictional force between sheet 215b and linkage section 123b.Will also be appreciated that linkage section 123b and/or second Rubber, sponge etc. can also be set on locking piece 215b and can increase the frictional force reinforcing sheet of frictional force.

It is understood that in other embodiments, the number of the second locking piece 215b can also be one, only Will be under the radial direction of lock collar fetter, the second locking piece 215b is near the longitudinal center of conveying cable body 200b The inner surface of axis can abut with the sidewall of linkage section 123b and by interventional medical device 110 and conveying cable body 200 are connected.

Refer to Figure 16,17 and 18, the another embodiment of this utility model provide intervention medical system 10c with Getting involved medical system 10b substantially the same, it includes having the interventional medical device of bolt head 120c, conveying Cable body 200c and be placed on conveying cable body 200c and can relatively carry the lock collar that cable body 200c moves axially 300c。

Bolt head 120c is substantially the same with bolt head 120b, and difference is, bolt head 120c includes Solid linkage section 123c；The sidewall of linkage section 123c is provided with the first sealed groove 125c.It is understood that In other embodiments, linkage section 123c can also be hollow structure, and now, the first sealed groove 125c can be with The tube chamber of linkage section 123c is separated, say, that the first sealed groove 125c does not run through linkage section 123c Inwall.

Conveying cable body 200c is substantially the same with conveying cable body 200b, and it includes generally towards away from cable end portion 211c The second locking piece 215c in uniform thickness that axis extends, difference is, the second locking piece 215c's Distal ports 216c somewhat draws close the axis of cable end portion 211c compared with its adjacent segment, in order to the second locking piece 215c Distal ports 216c can preferably enter the first sealed groove 125c, it is achieved bolt head 120c with conveying cable body Connection between 200c.

Lock collar 300c is substantially the same with lock collar 300b, and difference is, according to actual need The thickness of lock collar 300c and size is wanted to can be differently configured from thickness and the size of lock collar 300b, at this Repeat no more.

The second locking piece 215c to bolt head 120c as lock collar 300 radially constraint conveying cable body 200c The sidewall of linkage section 123c time (the second locking piece 215c encloses under the radial direction of lock collar 300c fetters Become a stopper slot that can house linkage section 123c time), the second locking piece 215b distal ports 216 lock First sealed groove 125c, it is achieved between conveying cable body 200b and the interventional medical device with bolt head 120c Connection.

It is understood that in other embodiments, the second locking piece 215c's or the first sealed groove 125c is individual Number can also be one, as long as under the radial direction of lock collar 300c fetters, the second locking piece 215c can be with company The section of connecing 123c wall abuts and is connected with conveying cable body 200 by interventional medical device 110.It is also understood that , in other embodiments, under the radial direction of lock collar 300 fetters, in each first sealed groove 125c Two or more second locking piece 215c can also be contained, if can by interventional medical device 110c with Conveying cable body 200c is connected, and such as two or more second locking piece 215c are connected to one first lock Close the cell wall of groove 125c or be fastened in a first sealed groove 125c.

Referring to Figure 19 and 20, intervention medical system 10d that this utility model a further embodiment provides includes tool There are the interventional medical device of bolt head 120d, conveying cable body 200d and are placed on conveying cable body 200d and can be relative Lock collar 300d that conveying cable body 200d moves axially.

Bolt head 120d is substantially the same with bolt head 120b, and bolt head 120d includes the linkage section of hollow 123d, difference is, the sidewall of linkage section 123d is provided with T-shaped first sealed groove 125d；First is sealed The tube chamber of groove 125d and linkage section 123d is separated, and the near-end of the first sealed groove 125d runs through linkage section 123d Proximal face.It is understood that in other embodiments, linkage section 123d can also be solid construction. It is understood that the first sealed groove 125d can also be the sealed groove of other shapes such as L-type, c-type, no The T-shaped sealed groove being limited in present embodiment.

Conveying cable body 200d is substantially the same with conveying cable body 200, and difference is, according to actual needs It is corresponding that the thickness of each element of conveying cable body 200d and size can be differently configured from each of conveying cable body 200 Element, as long as the thickness of the locking piece of conveying cable body 200d is uniformly, does not repeats them here.

Lock collar 300d is substantially the same with lock collar 300, and difference is, according to actual needs The thickness of lock collar 300d and size can be differently configured from thickness and the size of lock collar 300, at this no longer Repeat.

The second locking piece 215d to bolt head 120d as lock collar 300d radially constraint conveying cable body 200d The sidewall of linkage section 123d time (the second locking piece 215d wraps under the radial direction of lock collar 300d fetters When surrounding the stopper slot that can house linkage section 123d), the second locking piece 215d at least partly locks first Sealed groove 125c, it is achieved the connection between conveying cable body 200d and interventional medical device.

It is understood that in other embodiments, the second locking piece 215d's or the first sealed groove 125d Number can also be one, as long as under the radial direction of lock collar 300d fetters, the second locking piece 215d can Abut with linkage section 123d and interventional medical device is connected with conveying cable body 200d.It is also understood that , in other embodiments, under the radial direction of lock collar 300 fetters, in each first sealed groove 125d Two or more second locking piece 215d can also be contained, as long as can be by interventional medical device and conveying Cable body 200 is connected, and such as two or more second locking piece 215d are connected to a first sealed groove The cell wall of 125d or be fastened in a first sealed groove 125d.

Each technical characteristic of embodiment described above can combine arbitrarily, for making description succinct, the most right The all possible combination of each technical characteristic in above-described embodiment is all described, but, if these skills There is not contradiction in the combination of art feature, is all considered to be the scope that this specification is recorded.

Embodiment described above only have expressed several embodiments of the present utility model, its describe more concrete and In detail, but therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that, it is right For those of ordinary skill in the art, without departing from the concept of the premise utility, it is also possible to do Going out some deformation and improvement, these broadly fall into protection domain of the present utility model.Therefore, this utility model is special The protection domain of profit should be as the criterion with claims.

Claims (30)

1. get involved a medical system, including being provided with the apparatus of bolt head and being provided with the conveying cable body in cable end portion, It is characterized in that, described intervention medical system also includes being placed on the locking set that described conveying cable is external movably Pipe；Described cable end portion includes that at least one is generally towards the locking piece extended away from axis, described cable end portion, institute Stating locking piece and have elasticity, under the radial direction of described lock collar fetters, described bolt head abuts described locking piece And make described bolt head be connected with cable end portion, and when described lock collar the most described conveying cable body moves to No longer described in radial constraint during locking piece, described locking piece bounces off described bolt head and makes described apparatus and institute State conveying cable body to separate.

Intervention medical system the most according to claim 1, it is characterised in that described cable end portion sealed The quantity of sheet is multiple, and the locking piece in multiple described cable end portions surrounds a stopper slot, in described lock collar Radial direction constraint under described bolt head be housed in described stopper slot make described bolt head and cable end portion phase Even.

Intervention medical system the most according to claim 1, it is characterised in that the sidewall of described bolt head It is provided with at least one sealed groove, when described bolt head is connected with cable end portion, in the sealed groove of described bolt head At least contain at least one locking piece in described cable end portion.

Intervention medical system the most according to claim 3, it is characterised in that described bolt head sealed Groove is axially extending along described bolt head, and runs through the proximal face of described bolt head.

5. get involved a medical system, including being provided with the apparatus of bolt head and being provided with the conveying cable body in cable end portion, It is characterized in that, described intervention medical system also includes being placed on the locking set that described conveying cable is external movably Pipe；Described bolt head includes at least one sealed groove, and the sealed groove of described bolt head runs through described bolt head Proximal face；Described cable end portion includes that at least one is sealed generally towards extend away from axis, described cable end portion Sheet, the locking piece in described cable end portion has elasticity, described bolt head under the radial direction of described lock collar fetters Described sealed groove in contain at least one locking piece in described cable end portion and make described bolt head and cable end Portion is connected, and when described lock collar the most described conveying cable body moves to no longer cable end portion described in radial constraint Locking piece time, the locking piece in described cable end portion ejects from the sealed groove of described bolt head and makes described device Tool is separated with described conveying cable body.

Intervention medical system the most according to claim 5, it is characterised in that described bolt head includes many Individual locking piece spaced apart from each other, the sealed groove of described bolt head is positioned at adjacent two described locks of described bolt head Closing between sheet, under the radial direction of described lock collar fetters, each locking piece in described cable end portion is all housed in institute State and a sealed groove of bolt head makes described bolt head be connected with cable end portion.

7. according to described intervention medical system arbitrary in claim 3 to 6, it is characterised in that described bolt The near-end of the sealed groove of head length in described bolt head circumference is circumferential at described bolt head less than its far-end On length.

Intervention medical system the most according to claim 7, it is characterised in that described bolt head sealed Groove includes T-type structure, and a length of described T-shaped in described bolt head circumference of described T-type structure far-end Structure greatest length in described bolt head circumference.

9. according to described intervention medical system arbitrary in claim 3 to 6, it is characterised in that given an account of Enter medical system and also include a limited part being contained in described conveying cable body, when described bolt head and cable end When portion is connected, the locking piece in described cable end portion is also clamped between described limited part and described lock collar.

Intervention medical system the most according to claim 9, it is characterised in that described conveying cable body bag Including the cable body section of hollow, the locking piece in described cable end portion is located at the far-end of described cable body section, described conveying cable body And the monolateral gap between described limited part is less than the wall thickness of described cable body section.

11. according to the intervention medical system described in claim 3 to 6, it is characterised in that described cable end portion The thickness of locking piece uniform.

12. intervention medical systems according to claim 6, it is characterised in that the lock of described bolt head The near-end of conjunction groove length in described bolt head circumference is less than its far-end length in described bolt head circumference Degree, the near-end of the locking piece of described bolt head is more than its far-end along described bolt along the length of described bolt head circumference The length of head circumference.

13. intervention medical systems according to claim 12, it is characterised in that described bolt head includes The main paragraph of hollow, the locking piece of described bolt head is located in the proximal face of described hollow body section.

14. intervention medical systems according to claim 13, it is characterised in that described main paragraph and institute State bolt head locking piece be by the same cleaved integrative-structure formed of hollow pipe.

15. intervention medical systems according to claim 13, it is characterised in that the lock of described bolt head The outer surface closing sheet is cambered surface, and the overall external diameter that the described locking piece of described bolt head is constituted is more than institute State the external diameter of main paragraph；The portion end surface of described lock collar far-end is formed to described lock collar near-end depression At least one accommodating grooves, when described lock collar radially fetters the locking piece in described cable end portion, described bolt The locking piece of head is at least partially housed in described accommodating grooves.

16. 1 kinds of interventional medical devices, including the bolt head being positioned at its near-end, it is characterised in that described bolt The sidewall of head is provided with at least one sealed groove.

17. intervention medical systems according to claim 16, it is characterised in that the lock of described bolt head Close axially extending along described bolt head of groove, and run through the proximal face of described bolt head.

18. 1 kinds of interventional medical devices, including the bolt head being positioned at its near-end, it is characterised in that described bolt Head includes at least one sealed groove, and described sealed groove runs through the proximal face of described bolt head.

19. according to described interventional medical device arbitrary in claim 16 to 18, it is characterised in that institute The near-end stating sealed groove is less than its far-end length along described bolt head circumference along the length that described bolt head is circumferential Degree.

20. according to described interventional medical device arbitrary in claim 16 to 18, it is characterised in that institute State sealed groove and include T-type structure, and a length of institute that described T-type structure far-end is in described bolt head circumference State T-type structure greatest length in described bolt head circumference.

21. interventional medical devices according to claim 18, it is characterised in that described locking piece is T Matrix, and its near-end along described bolt head circumference a length of described locking piece along described bolt head circumference Long length.

22. interventional medical devices according to claim 18, it is characterised in that described bolt head includes The main paragraph of hollow, described bolt head includes multiple locking piece spaced apart from each other, the sealed groove of described bolt head Between adjacent two described locking pieces of described bolt head, the locking piece of described bolt head be located at described in In the proximal face of empty main paragraph.

23. interventional medical devices according to claim 22, it is characterised in that described main paragraph and institute Stating locking piece is by the same cleaved integrative-structure formed of hollow pipe.

24. interventional medical devices according to claim 22, it is characterised in that outside described locking piece Surface is cambered surface, and the overall external diameter that the described locking piece of described bolt head is constituted is more than described main paragraph External diameter.

The conveyer device of 25. 1 kinds of interventional medical devices, including conveying cable body, described conveying cable body include with The cable end portion that described interventional medical device removably connects, it is characterised in that described conveyer device also includes can It is placed on the lock collar that described conveying cable is external movably；Described cable end portion include at least one generally towards away from The locking piece that axis, described cable end portion extends, described locking piece has elasticity, and described locking piece is at described lock Determine the lower compression of radial direction constraint of sleeve pipe, and move to no longer footpath at described lock collar the most described conveying cable body Shape is recovered in time retraining described locking piece.

26. conveyer devices according to claim 25, it is characterised in that the locking piece in described cable end portion Quantity be multiple, and the locking piece in multiple described cable end portion is spaced from each other.

27. conveyer devices according to claim 25, it is characterised in that described locking piece is T-shaped, And its far-end is along a length of described locking piece the greatly enhancing most along described cable end portion circumference of described cable end portion circumference Degree.

28. according to described conveyer device arbitrary in claim 25 to 27, it is characterised in that described lock Close sheet thickness uniform.

29. conveyer devices according to claim 28, it is characterised in that described conveyer device also includes A piece limited part being contained in described conveying cable body, described limited part is for described lock collar ordinatedly Described locking piece is held between the two.

30. according to conveyer device described in claim 29, it is characterised in that described conveying cable body includes hollow Cable body section, described locking piece is located at the far-end of described cable body section, described conveying cable body and described limited part it Between monolateral gap less than the wall thickness of described cable body section.