CN114099070A

Movatterモバイル変換

Info

Publication number: CN114099070A
Application number: CN202010888615.8A
Authority: CN
Inventors: 贾士奇; 梅杰; 林兴; 刘世红; 陈国明
Original assignee: Shanghai Microport Cardioflow Medtech Co Ltd
Current assignee: Shanghai Microport Cardioflow Medtech Co Ltd
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2022-03-01
Also published as: WO2022042221A1

Abstract

According to the implant conveying device, the plectrum is arranged on the inner tube or the outer tube, and the sound prompting component is arranged on the fixing structure, so that when the inner tube or the outer tube provided with the plectrum moves to drive the plectrum to move to the sound prompting component, the plectrum acts on the sound prompting component to produce sound. Therefore, when the doctor carries out the implantation operation, the doctor determines the position of the inner tube or the outer tube after moving according to the sound sent by the sound prompt component.

Description

Implant delivery device

Technical Field

The invention relates to the technical field of medicines, in particular to an implant conveying device.

Background

With the progress of aging of the population in China, more and more patients with senile valvular disease and patients with various risk factors such as hypertension, diabetes, cerebrovascular disease and the like are in need. For the traditional surgical treatment of valvular lesions, the sternum needs to be sawn, extracorporeal circulation needs to be established, and the valvular replacement operation is completed under the condition of cardiac arrest. However, surgical heart valve replacement surgery under extracorporeal circulation is highly risky for elderly patients that incorporate multiple risk factors. About 30 percent of patients abandon surgical flap-changing treatment due to various reasons such as advanced age, poor left ventricular function, serious complications and the like. Therefore, transcatheter valve replacement procedures that do not require an open chest, extra-corporeal circulation, cardiac arrest, less trauma, and rapid recovery are the best options for such patients.

Currently, in the process of implanting an interventional prosthetic heart valve into a body, an implant delivery device is usually used to deliver the interventional prosthetic heart valve to a predetermined site. However, the existing heart valve implant delivery device does not know the position to which the tool is delivered and whether the tool is released, and doctors are completely experienced when using the heart valve implant delivery device, so that poor operation effect is often caused.

Disclosure of Invention

The invention aims to solve the technical problem that the conveying position cannot be accurately judged when the conventional implant conveying device conveys an implant.

To solve the above problems, the present invention provides an implant delivery device, comprising:

the catheter assembly comprises an inner tube and an outer tube sleeved on the inner tube, wherein a space between the outer tube and the inner tube is used for placing an implant, and a poking piece is arranged on the outer tube or the inner tube;

the transmission assembly is used for driving the inner pipe or the outer pipe provided with the pulling sheet to move along the direction of the axis of the inner pipe;

the fixed knot constructs, be equipped with sound prompt component on the fixed knot constructs, be equipped with the plectrum the inner tube or the outer tube removes in order to drive the plectrum extremely when the sound prompt component is last, the plectrum acts on sound prompt component is with the sound production.

Optionally, the implant delivery device further comprises a connecting piece, the connecting piece is fixedly connected with the inner tube or the outer tube, and the shifting piece is arranged on the connecting piece.

Optionally, the sound prompt component comprises a knocking body, a non-smooth knocking surface is arranged on the knocking body, and when the plectrum moves to the sound prompt component, the plectrum scrapes the knocking surface to make sound.

Optionally, the sound prompt assembly further comprises a first fixing member, and the first fixing member penetrates through the knocking body to fix the knocking body on the fixing structure.

Optionally, the first fixing piece is elastically arranged, and when the striking body is applied with an acting force by the poking piece, the first fixing piece which is elastically arranged accumulates elastic potential energy and generates a reverse acting force, so that the striking body moves up and down in a direction perpendicular to the striking surface under the acting force of the poking piece and the first fixing piece.

Optionally, the first fixing member includes: the fixed main body penetrates through the knocking body to fix the knocking body on the fixed structure, the elastic piece is sleeved on the fixed main body, and when the shifting piece applies acting force to the knocking body, the elastic piece accumulates elastic potential energy and generates reverse acting force, so that the knocking body can reciprocate under the acting force of the shifting piece and the elastic piece.

Optionally, the knocking body further comprises a body and a plurality of protrusions arranged on the body, the body is arranged on the fixed structure, and the protrusions and the top surface of the body form the knocking surface.

Optionally, at least some of the protrusions have unequal spacing therebetween.

Optionally, a containing hole is formed in the body, a limiting block is arranged in the containing hole, the limiting block is fixedly connected with the side wall of the containing hole, and one end of the elastic piece extends into the containing hole and abuts against the limiting block.

Optionally, the connecting piece is annularly arranged and sleeved on the outer tube.

Optionally, the fixing structure includes two half-ring shells, the two half-ring shells are detachably sleeved on the connecting member by taking the axis of the inner pipe as a center, and the sound prompt component is disposed on an end portion of one of the two half-ring shells extending along the axial direction of the inner pipe.

Optionally, the catheter assembly further includes a pick bearing ring, the pick is disposed on the pick bearing ring, and the pick bearing ring is fixedly connected with the end of the connecting piece and sleeved on the outer tube.

Optionally, the transmission assembly is annularly arranged, and the transmission assembly is sleeved on the connecting piece and is in threaded connection with the connecting piece.

Optionally, the connecting piece is a plate-shaped structure, a through groove extending along the axis of the transmission assembly and penetrating through the plate-shaped structure is formed in the plate-shaped structure, a screw hole extending along the axis of the transmission assembly and penetrating through the plate-shaped structure is formed in the plate-shaped structure, the outer pipe penetrates through the through groove and is clamped in the through groove, and the transmission assembly penetrates through the screw hole and then is in threaded connection with the connecting piece.

Optionally, the outer tube is provided with a strength enhancing ring, the strength enhancing ring is sleeved on the outer tube, and at least part of the strength enhancing ring is clamped in the through groove.

Optionally, the outer tube or the inner tube provided with the pick, and/or the fixing structure is further provided with an indication scale, and the indication scale is used for indicating a distance that the outer tube or the inner tube moves along the axial direction of the inner tube.

According to the implant conveying device, the plectrum is arranged on the inner tube or the outer tube, and the sound prompting component is arranged on the fixing structure, so that the inner tube or the outer tube provided with the plectrum moves to drive the plectrum to move to the sound prompting component, and then the inner tube or the outer tube acts on the sound prompting component to produce sound. Therefore, when the doctor carries out the implantation operation, the doctor determines the position of the inner tube or the outer tube after moving according to the sound sent by the sound prompt component.

Drawings

FIG. 1 is a schematic structural view of an outer tube of an implant delivery device according to an embodiment of the present invention, wherein the outer tube is provided with indication scales;

FIG. 2 is a partial schematic view of an implant delivery device with a semi-ring housing and a sub-transmission assembly removed in accordance with an embodiment of the present invention;

fig. 3 is a partially enlarged view of a portion a in fig. 2;

FIG. 4 is a schematic structural view of an indicating scale on the fixing structure of the implant delivery device in an embodiment of the present invention;

FIG. 5 is a schematic view of an audible cue assembly of the implant delivery device mounted to a fixed structure in accordance with an embodiment of the present invention;

FIG. 6 is a schematic view of an embodiment of the present invention showing the structure of the protrusion disposed on the body of the audible cue assembly of the implant delivery device;

FIG. 7 is another schematic view of an implant delivery device in accordance with an embodiment of the present invention;

reference numerals

1-a catheter assembly;

11-a conical head; 12-an inner tube;

13-an outer tube; 14-a connector;

15-plectrum; 16-a paddle carrying ring;

2-a fixed structure; 2-semi-ring shell

3-a transmission assembly; 31-a sub-transmission assembly;

33-a motor; 34-a bearing;

4-an audible prompting component;

41-knocking body; 411-body;

412-bump; 4111-a limiting block;

42-a first fixture;

421-a stationary body; 422-an elastic member;

5-fixing the base;

6-indicating scale;

7-a strength enhancing ring;

8-convex ring;

101-a receiving hole; 102-a through slot;

Detailed Description

An implant delivery device according to the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention. Further, the structures illustrated in the drawings are often part of actual structures. In particular, the drawings may have different emphasis points and may sometimes be scaled differently.

FIG. 1 is a schematic structural view of an outer tube of an implant delivery device according to an embodiment of the present invention, wherein the outer tube is provided with indication scales; FIG. 2 is a partial schematic view of an implant delivery device with a semi-ring housing and a sub-transmission assembly removed in accordance with an embodiment of the present invention; fig. 3 is a partially enlarged view of a portion a in fig. 2;

as shown in fig. 1 to 3, an implant delivery device in this embodiment includes acatheter assembly 1, a fixingstructure 2, and atransmission assembly 3.

Thecatheter assembly 1 comprises aninner tube 12, anouter tube 13 covering theinner tube 12, wherein the space between theouter tube 13 and theinner tube 12 is used for placing an implant (not shown in the figure). Theouter tube 13 or theinner tube 12 is provided with a shiftingpiece 15.

Thetransmission assembly 3 is used for driving theinner tube 12 or theouter tube 13 provided with the shiftingpiece 15 to move along the direction of the axis of theinner tube 12.

Be equipped with soundprompt component 4 on fixed knot constructs 2, be equipped withplectrum 15inner tube 12 orouter tube 13 removes in order to driveplectrum 15 removes to when soundprompt component 4 is gone up,plectrum 15 acts on soundprompt component 4 is with the sound production.

The implant conveying device in this embodiment is through be equipped with on theinner tube 12 or theouter tube 13 theplectrum 15 is equipped with on the fixed knot constructs 2 and is equipped with soundprompt component 4 to be equipped withplectrum 15 theinner tube 12 or theouter tube 13 removes in order to driveplectrum 15 removes when moving on soundprompt component 4 act on soundprompt component 4, so that soundprompt component 4 phonates. In this way, when the surgeon performs the implantation operation, the surgeon determines the position of theinner tube 12 or theouter tube 13 after moving according to the sound generated by the soundprompt component 4.

Further, referring to fig. 2, in this embodiment, the implant delivery device in this embodiment further includes a connectingmember 14, and the connectingmember 14 is fixedly connected to theinner tube 12 or theouter tube 13. The fixingstructure 2 is annularly arranged and at least sleeved on the connectingpiece 14.

In this embodiment, the implant delivery apparatus may release the implant by moving theinner tube 12 in the axial direction of theinner tube 12 or by moving theouter tube 13 when delivering the implant to a predetermined position of the human body and releasing. The specific operation of moving theinner tube 12 or theouter tube 13 when releasing the implant is not particularly limited herein. In the present embodiment, theouter tube 13 is moved in the direction of theinner tube axis 12 for explanation.

With continued reference to fig. 2, thecatheter assembly 1 further includes aconical head 11, theconical head 11 is fixedly connected to one end of theinner tube 12, and the other end of theinner tube 12 is further connected to the fixingbase 5. In this embodiment, theinner tube 12, the fixingbase 5 and theconical head 11 may be integrally formed, may be fixedly connected by a fixing member, or may be adhered by an adhesive layer. And theinner tube 12 may not extend deep into theconical head 11 and the fixedseat 5, and may be connected only with the surfaces of theconical head 11 and the fixedseat 5. Alternatively, theinner tube 12 may also extend into theconical head 11 and the fixingseat 5 to be fixedly connected with theconical head 11 and the fixingseat 5. In this way, the connection between theinner tube 12 and theconical head 11 and the fixingbase 5 is firmer. The connection mode between theinner tube 12 and theconical head 11 and the fixingseat 5, and whether theinner tube 12 extends into theconical head 11 and the fixingseat 5 are not specifically limited, which is subject to actual conditions.

In addition, in this embodiment, the connectingmember 14 is annularly disposed and sleeved on theouter tube 13, wherein the connectingmember 14 can be integrally formed with theouter tube 13, and can also be fixedly connected through a fixing member or an adhesive layer.

Further, the implant delivery device in this embodiment further includes anindication scale 6, where theindication scale 6 is disposed on theouter tube 13 or theinner tube 12 provided with thepick 15, or the indication scale is disposed on the fixedstructure 2, and theindication scale 6 may also be disposed on theouter tube 13 or theinner tube 12 provided with thepick 15 and the fixedstructure 2 at the same time. The situation when theindication scale 6 is arranged in different positions is described in detail below.

As shown in fig. 1, in this embodiment, if thedial 15 is disposed on theouter tube 13 and theouter tube 13 drives thedial 15 to move, theindication scale 6 is disposed on theouter tube 13, wherein theindication scale 6 is used for indicating a moving distance of theouter tube 13 along the axial direction of theinner tube 12. Specifically, theindication scale 6 may indicate a distance between the beginning of the movement of theouter tube 13 and the movement of theouter tube 13 to the predetermined position in the axial direction of theinner tube 12, and theindication scale 6 may also indicate a distance between the beginning of the action of thepick 15 on theaudible cue assembly 4 and the movement of thepick 15 and theouter tube 13 to the predetermined position in the axial direction of theinner tube 12. In this embodiment, theindication scale 6 is arranged on theouter tube 13, so that the moving distance between theouter tube 13 and thepick 15 can be read through theindication scale 6, and thus, when a doctor performs an implantation operation, the moving distance of theouter tube 13 or thepick 15 can be clearly and intuitively obtained, and the accuracy of the position of the implant implanted in the human body is further improved. In addition, if thedial 15 is disposed on theinner tube 12, and theinner tube 12 moves to drive thedial 15 to move, theindication scale 6 is disposed on theinner tube 12, and the specific position of the indication scale on theinner tube 12 is set according to the specific actual situation, which is not limited herein.

In addition, in an optional scheme, the number of the indication scales 6 may be two, and the twoindication scales 6 are simultaneously disposed on thesemi-ring housing 21 and theouter tube 13, so that a doctor can select one of the indication scales 6 located at two different positions according to actual needs to read a moving distance of theouter tube 13, and thus, the position of theouter tube 13 is read more conveniently and more accurately.

Further, with continued reference to fig. 1, thecatheter assembly 1 further includes a pick-upbearing ring 16, thepick 15 is disposed on the pick-upbearing ring 16, and the pick-upbearing ring 16 and the connectingpiece 14 are sleeved on the end of theouter tube 13 facing theconical head 11.

In this embodiment, there are two dialingpieces 15, the two dialingpieces 15 are symmetrically disposed at two ends of the dialingpiece bearing ring 16 with the axis of the inner tube as a center, one of the two dialingpieces 15 cooperates with the soundprompt component 4 to act on the soundprompt component 4 to generate sound, and when theindication scale 6 is disposed on the fixedstructure 2, theother dialing piece 15 is used to cooperate with theindication scale 6 to indicate a moving distance of the dialingpiece 15.

In addition, in this embodiment, the inner diameter of thepick carrier ring 16 is greater than or equal to the outer diameter of theouter tube 13, and when the inner diameter of thepick carrier ring 16 is equal to the outer diameter of theouter tube 13, there is no gap between thepick carrier ring 16 and theouter tube 13, so that there is no relative displacement between thepick carrier ring 16 and theouter tube 13. Further, in the embodiment, thepick carrier ring 16 may be fixedly connected to theouter tube 13, so as to further prevent thepick carrier ring 16 from being displaced relative to theouter tube 13, so as to improve the accuracy of the sounding indication when thepick 15 acts on theaudible indication assembly 4. Specifically, in this embodiment, the manner of fixedly connecting thepick carrier ring 16 and theouter tube 13 may include: integrally formed, screwed or glued, etc., and the fixing manner is not specifically limited herein, subject to actual requirements.

The outer side of one end of the connectingpiece 14 facing the fixedseat 5 is provided with an external thread; thetransmission assembly 3 is annularly arranged, an inner wall of the transmission assembly is provided with an internal thread, the transmission assembly is sleeved on the connectingpiece 14 and meshed with the external thread of the connectingpiece 14, and therefore thetransmission assembly 3 is in threaded connection with the connectingpiece 14.

With continued reference to fig. 1-3, the operation of the implant delivery device of the present embodiment will be described with reference to fig. 1-3. First, the implant is placed in the space between theinner tube 12 and theouter tube 13; then, extending one end of the implant conveying device, which is provided with theconical head 11, into the body of the patient; then, the doctor holds the fixingmember 5 and rotates thetransmission assembly 3, so that thetransmission assembly 3 drives the connectingmember 14 and theouter tube 13 to move along the inner tube axis in the direction away from theconical head 11, and correspondingly, the implant is exposed from thecatheter assembly 1 to be implanted into the patient; when theouter tube 13 moves to a predetermined position, thepick 15 of the connectingpiece 14 acts on the voiceprompt component 4 to make a sound, so that the doctor can know that the outer tube moves to the predetermined position according to the voice prompt to perform a predetermined operation.

In this embodiment, the predetermined position may be a position where the outer tube moves corresponding to the completion of the release of the implant, or a position where the outer tube moves corresponding to the release of the implant to the critical area, and the specific meaning of the predetermined position is not specifically limited herein, which is subject to the actual situation. Further, in the present embodiment, the predetermined operation may be a stopping operation corresponding to the completion of the above-described implant release, or a speed slowing operation corresponding to the implant release to the key position, or the like; in the present embodiment, the predetermined operation is not specifically limited herein, and is determined to correspond to the predetermined position.

With reference to fig. 1 and fig. 2, in this embodiment, the fixingstructure 2 includes two half-ring shells 21, the two half-ring shells 21 are detachably sleeved on the connectingmember 14 by taking the axis of the inner pipe as a center, and the soundprompt component 4 is disposed on one of the two half-ring shells 21. Specifically, in the present embodiment, one of the half-ring shells 21 has a groove at an end portion extending along the inner tube axis, and the soundprompt component 4 is disposed in the groove, so that a cavity can be formed at the position of the end portion extending along the inner tube axis of the two half-ring shells 21, and after thedialing piece 15 acts on the soundprompt component 4 to generate the prompt sound, the prompt sound can vibrate in the cavity to increase the decibel of the prompt sound.

Since in the present embodiment, the fixingstructure 2 comprises two half-ring shells 21, and the two half-ring shells 21 are detachably connected; in this regard, when assembling the implant delivery device of the present embodiment, the two half-ring housings 21 may be separated, one of the two half-ring housings 21 may be clamped on one side of thecatheter assembly 1, the other half-ring housing 21 may be clamped on the other side of thecatheter assembly 1, and finally the two half-ring housings 21 may be fixed by using a fixing member to complete the assembly of the fixingstructure 2. That is, in the present embodiment, the assembly of the fixingstructure 2 is convenient, and when one of the twohalf ring housings 21 is damaged, the twohalf ring housings 21 can be separated from the fixing structure, so as to replace the damagedhalf ring housing 21, thereby eliminating the need to replace thewhole fixing structure 2, and being beneficial to reducing the cost of the implant delivery device. The twohalf ring housings 21 may be fixed by screws or bolts. And is not particularly limited herein.

And, in this embodiment, thetransmission assembly 3 includes twosub-transmission assemblies 31, and the twosub-transmission assemblies 31 are detachably and mirror-image-sleeved on the connectingmember 14 with the axis of the inner pipe as the center. When assembling thetransmission assembly 3, the twosub-transmission members 31 may be separated, one of the twosub-transmission members 31 is engaged with one side of the connectingmember 14, theother sub-transmission member 31 is engaged with the other side of the connectingmember 14, and finally the twosub-transmission members 31 are fixed by a fixing member to complete the assembly of thetransmission assembly 3. That is, in this embodiment, it is convenient to assemble thetransmission assembly 3, and when one of the twosub-transmission assemblies 31 is damaged, the twosub-transmission assemblies 31 are separated from each other, so as to replace the damagedsub-transmission assembly 31, thereby avoiding replacing thewhole transmission assembly 3, and facilitating to reduce the cost of the implant delivery device. Wherein, the twosub-transmission assemblies 31 can be fixed by screws or bolts. And is not particularly limited herein.

FIG. 5 is a schematic view of an audible cue assembly of the implant delivery device mounted to a fixed structure in accordance with an embodiment of the present invention; FIG. 6 is a schematic view of an embodiment of the present invention, wherein the protrusion is disposed on the body of the audible cue assembly of the implant delivery device. Referring to fig. 3 in conjunction with fig. 5 and 6, in the present embodiment, theaudible cue assembly 4 includes a striking body 41 having a non-smooth striking surface B, and thepick 15 scrapes the striking surface B to generate sound when thepick 15 moves onto theaudible cue assembly 4. Wherein, the voice prompt component further comprises a first fixingmember 42, and the first fixingmember 42 penetrates through the knocking body 41 to fix the knocking body 41 on the fixingstructure 2. Specifically, the first fixingmember 42 fixes the striking body 41 on an end surface of one end of the half-ring housing 21 of the fixedstructure 2 extending along the inner pipe axis.

Further, in this embodiment, the first fixingelement 42 is elastically arranged, and when the striking body 41 is acted by the pullingpiece 15, the elastically arranged first fixingelement 42 accumulates elastic potential energy and generates a reverse acting force, so that the striking body 41 reciprocates under the action of the pullingpiece 15 and the first fixingelement 42, specifically, in this embodiment, the striking body 41 reciprocates in a direction perpendicular to the striking surface B under the action of the pullingpiece 15 and the first fixingelement 42. In an alternative embodiment, the knocking body 41 is moved back and forth obliquely in a direction having a small angle with the knocking surface B under the action of thepick 15 and the first fixingmember 42. Alternatively, the first fixingelement 42 may be provided as a member having an elastic function, which accumulates elastic potential energy and generates an opposite force when the striking body 41 is acted by thepick 15.

And, optionally, with continued reference to fig. 5, the first fixingelement 42 may also be separately disposed, wherein the first fixingelement 42 may include: fixedmain part 421 andelastic component 422, fixedmain part 421 passes strike body 41 in order will strike body 41 and fix on fixed knot constructs 2,elastic component 422 cover is established fixedmain part 421 is last,plectrum 15 is right when striking body 41 applys the effort,elastic component 422 accumulates elastic potential energy and produces reverse effort, so that strike body 41 in theplectrum 15 with under the effort ofelastic component 422 perpendicular to strike the direction of face B and reciprocate.

With continued reference to fig. 5, in the present embodiment, the striking body 41 includes abody 411 and a plurality ofprotrusions 412 disposed on thebody 411, and the plurality ofprotrusions 412 and the top surface of thebody 411 form the striking face B. When the connectingpiece 14 drives the pokingpiece 15 to move in the direction away from theconical head 11 so as to release the implant, and when the pokingpiece 15 moves to the soundprompt component 4, the pokingpiece 15 scrapes against the knocking surface B, so that a sound is generated.

In this embodiment, theprotrusions 412 and the top surface of thebody 411 form the striking surface B. In other embodiments, the striking surface B may also be a rough surface, and the specific form of the striking surface B is not specifically limited herein, and only when theplectrum 15 scrapes the striking surface B, the sound is generated.

Further, as shown in fig. 3 and fig. 5 to 6, in this embodiment, in particular, the first fixingmember 42 penetrates through thebody 411 of the knocking body 41 to fix the knocking body 41 on the fixingstructure 2. And, be equipped withaccommodation hole 101 on thebody 411, be equipped withstopper 4111 in theaccommodation hole 101,stopper 4111 with the lateral wall fixed connection ofaccommodation hole 101, the one end ofelastic component 422 stretches into in theaccommodation hole 101 and withstopper 4111 butt, and the other end ofelastic component 422 with fixed knot constructs 2 butt.

In this embodiment, when thepick 15 moves to theaudible cue component 4, thepick 15 acts on theprotrusion 412 to generate sound, and thebody 411 moves toward the fixedstructure 2. At this time, theelastic member 422 is compressed to accumulate elastic potential energy, when thepick 15 moves between theadjacent protrusions 412, theelastic member 422 generates a stress away from the half-ring housing 21 where theaudible prompting component 4 is located, so as to push thebody 411 to move away from the half-ring housing 21 where theaudible prompting component 4 is located, and further, thepick 15 touches the top surface of thebody 411 between theadjacent protrusions 412 to generate a sound. In this embodiment, thebody 411 reciprocates in a direction perpendicular to the axis of the inner tube due to the influence of the elastic potential energy generated by theelastic member 422, and then vibrates and scrapes with thepick 15, so as to increase the decibel of the sound generated by thepick 15 when acting on the soundprompt component 4, and facilitate a doctor to judge the moving position of theouter tube 13 according to the sound with higher decibel.

And, in this embodiment, the distance between theprotrusions 412 may be equal, so that the time interval between the prompting sounds is the same when the dialingpiece 15 acts on thevoice prompting component 4 to generate the prompting sounds. Meanwhile, the intervals between at least some of theprotrusions 412 may be unequal, so that the time intervals between at least some of the prompting sounds may be unequal, and the moving position of theouter tube 13 may be determined by the prompting sounds with unequal interval times. And the spacing between theprotrusions 412 and the number ofprotrusions 412 may also be adjusted according to different requirements. For example, if the soundprompt component 4 is required to emit the prompt sound intermittently, a relatively small number ofprotrusions 412 are provided, and a relatively large distance is provided betweenadjacent protrusions 412, for example, 10protrusions 412 may be provided within 10 cm; if theaudible prompting component 4 is required to continuously and densely emit prompting sounds, a relatively large number ofprotrusions 412 are provided, and a small distance is provided betweenadjacent protrusions 412, for example, 20protrusions 412 can be provided within 10 cm.

In addition, in this embodiment, the material of thepick 15 and theprotrusion 412 may be PC (polycarbonate), ABS (propylene-butadiene-styrene copolymer), etc., and the material of thepick 15 and theprotrusion 412 is not specifically limited herein, so that light weight can be achieved while sufficient elasticity and wear resistance are provided.

With reference to fig. 3 and fig. 5 to 6, in this embodiment, the fixingbody 421 is a screw, and theelastic member 422 is a spring. In other embodiments, the fixingbody 421 may also be a bolt, and theelastic member 422 may be an object with elastic properties, such as a spring sheet or a spring block.

In addition, in other embodiments, theelastic member 422 may not extend into the receivinghole 101, but may be clamped between the fixingstructure 2 and thebody 411. In particular, the actual situation is the standard.

And, in other embodiments, the first fixingmember 42 may also be an elastic fixing member, and at least a portion of the elastic fixing member between thebody 411 and the fixingstructure 2 is elastically disposed. The specific arrangement structure of the first fixing member 41 is not particularly limited, so that thebody 411 can reciprocate in a direction perpendicular to the axis of the inner tube.

In the above embodiment, the first fixingelement 42 is a combined structure of the fixingbody 421 and theelastic element 422. In other embodiments, the first fixingelement 42 may be provided with only a fixingmain body 421 without anelastic element 422 to fix themain body 411 to the fixingstructure 2. Alternatively, an adhesive layer is disposed between thebody 411 and the fixingstructure 2, so that thebody 411 and the fixingstructure 2 are fixed by the adhesive layer. The fixing manner between thebody 411 and the fixingstructure 2 is not specifically limited, and is subject to actual requirements.

FIG. 7 is another schematic view of an implant delivery device in accordance with an embodiment of the present invention; in an alternative, the connectingpiece 14 may also be a plate-like structure through which both theouter tube 13 and thetransmission assembly 3 pass.

Specifically, as shown in fig. 7, in the present embodiment, the connectingmember 14 is a plate-shaped structure, a throughgroove 102 extending along the axis of the inner pipe and penetrating through the plate-shaped structure is formed in the plate-shaped structure, a screw hole (not shown) extending along the axis of the transmission assembly and penetrating through the plate-shaped structure is formed in the plate-shaped structure, theouter pipe 13 passes through the throughgroove 102 and is clamped in the throughgroove 102, and thetransmission assembly 3 passes through the screw hole and then is screwed with the connectingmember 14. In the present embodiment, theouter tube 13 and thetransmission assembly 3 are eccentrically disposed, that is, theouter tube 13 and thetransmission assembly 3 are not in the same line.

And, as shown in fig. 7, in this embodiment, the connectingpiece 14 is a cuboid, thetransmission assembly 3 is a screw rod, one end of the screw rod extends into the screw hole of the connectingpiece 14, the other end far away from the connectingpiece 14 is provided with amotor 33, themotor 33 is connected with the screw rod through abearing 34, themotor 33 rotates to drive the screw rod to rotate, and then the connectingpiece 14 and theouter tube 13 are driven to move along the direction of the axis of the inner tube far away from or close to the direction of theconical head 11.

Further, in the present embodiment, the throughgroove 102 penetrates the connectingmember 14 in a direction perpendicular to the inner tube axis, and therefore, thecatheter assembly 1 can be inserted into or removed from the throughgroove 102 from one end of the throughgroove 102 penetrating the connectingmember 14 to connect with or disconnect from the connectingmember 14. In this way, thecatheter assembly 1 is easy to install and remove. Theouter tube 13 may be fixedly connected to the connectingmember 14 by screwing, abutting, or adhering, and the specific connection manner between theouter tube 13 and the connectingmember 14 is not limited herein.

Further, as shown in fig. 7, in this embodiment, a strength enhancing ring 7 is disposed on theouter tube 13, and the strength enhancing ring 7 is sleeved on theouter tube 13 and at least partially engaged in the throughgroove 102. In this embodiment, the strength enhancing ring 7 is used to enhance the strength of theouter tube 13 to prevent theouter tube 13 and the connectingmember 14 from being broken when a force is applied to the connecting region. In this embodiment, the strength enhancing ring 7 may be integrally formed with theouter tube 13, or may be detachably disposed with theouter tube 13. When the strength enhancement ring 7 is detachably provided to theouter tube 13, when one of theouter tube 13 or the strength enhancement ring 7 is damaged, only the damagedouter tube 13 or the strength enhancement ring 7 may be replaced without replacing theouter tube 13 and the strength enhancement ring 7 at the same time. So as to reduce the damage of consumables and reduce the cost.

With reference to fig. 7, in this embodiment, the strength-enhancing ring 7 is sleeved with two protruding rings 8 disposed at intervals, and the two protruding rings 8 respectively abut against the plate-shaped structure at two ends of the throughgroove 102, so as to prevent the connectingmember 14 and theouter tube 13 from moving relatively on the axis of the inner tube. The convex ring 8 and the strength enhancing ring 7 can be integrally formed and can also be detachably connected. When the protruding ring 8 is detachably connected to the strength-increasing ring 7, when one of the protruding ring 8 and the strength-increasing ring 7 is damaged, the damaged protruding ring 8 or strength-increasing ring 7 may be removed and replaced, which may reduce the cost.

Further, with reference to fig. 7, in the present embodiment, the fixingstructure 2 is configured in a plate shape, for example, the fixingstructure 2 is configured as a rectangular plate, and the structure of the fixingstructure 2 is not limited in detail here, and may be configured as a planar structure. The soundprompt component 4 is fixed on the fixingstructure 2 which is arranged in a plate shape. Optionally, in this embodiment, the implant delivery device further includes a housing (not shown), and the fixingstructure 2 is located in the housing and fixedly connected to the housing of the housing.

It should be noted that, in the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, similar parts between the embodiments may be referred to each other, and different parts between the embodiments may also be used in combination with each other, which is not limited by the present invention.

The above description is only for the purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and any variations and modifications made by those skilled in the art based on the above disclosure are within the scope of the appended claims.

Claims

1. An implant delivery device, comprising:

the catheter assembly comprises an inner tube and an outer tube sleeved on the inner tube, a space between the outer tube and the inner tube is used for placing an implant, and a shifting piece is arranged on the outer tube or the inner tube;

2. The implant delivery apparatus according to claim 1, further comprising a connector fixedly connected to the inner tube or the outer tube, wherein the paddle is disposed on the connector.

3. The implant delivery device of claim 1, wherein the audible cue assembly comprises a strike body having a non-smooth strike face thereon, the paddle scraping against the strike face to produce sound when the paddle is moved onto the audible cue assembly.

4. The implant delivery device of claim 3, wherein the audible cue assembly further comprises a first fastener that passes through the plexor body to secure the plexor body to the fixation structure.

5. The implant delivery device according to claim 4, wherein the first fixing element is elastically arranged, and when the striking body is acted by the poke piece, the elastically arranged first fixing element accumulates elastic potential energy and generates a reverse acting force, so that the striking body reciprocates under the action of the poke piece and the first fixing element.

6. The implant delivery apparatus of claim 5, wherein the first securing member comprises: the fixed main body penetrates through the knocking body to fix the knocking body on the fixed structure, the elastic piece is sleeved on the fixed main body, the poking piece is opposite to the knocking body when acting force is applied to the knocking body, elastic potential energy is accumulated in the elastic piece and reverse acting force is generated, so that the knocking body is perpendicular to the direction of the knocking surface and moves up and down under the acting force of the poking piece and the elastic piece.

7. The implant delivery device of claim 3, wherein the strike body further comprises a body and a plurality of projections disposed on the body, the body being disposed on the fixation structure, the plurality of projections and a top surface of the body forming the strike face.

8. The implant delivery apparatus of claim 7, wherein the spacing between at least some of the projections is unequal.

9. The implant delivery device according to claim 7, wherein the body has a receiving hole, a stop block is disposed in the receiving hole, the stop block is fixedly connected to a sidewall of the receiving hole, and one end of the elastic member extends into the receiving hole and abuts against the stop block.

10. The implant delivery device of claim 2, wherein the connector is annularly disposed and disposed over the outer tube.

11. The implant delivery apparatus according to claim 10, wherein the fixation structure comprises two half-ring shells, the two half-ring shells being mirror images of each other around the axis of the inner tube and detachably fitted on the connecting member, and the audible cue component is provided on an end portion of one of the two half-ring shells extending in the axial direction of the inner tube.

12. The implant delivery apparatus according to claim 10, wherein the catheter assembly further comprises a pick carrier ring, the pick being disposed on the pick carrier ring, the pick carrier ring being fixedly connected to the end of the connector and fitting over the outer tube.

13. The implant delivery apparatus according to claim 10, wherein the transmission member is annularly disposed, and the transmission member is disposed over the connector and threadedly engaged with the connector.

14. The implant delivery device according to claim 2, wherein the connecting member is a plate-shaped structure, a through slot extending along the axis of the transmission member and penetrating through the plate-shaped structure is formed in the plate-shaped structure, a screw hole extending along the axis of the transmission member and penetrating through the plate-shaped structure is formed in the plate-shaped structure, the outer tube passes through the through slot and is held in the through slot, and the transmission member passes through the screw hole and is screwed with the connecting member.

15. The implant delivery device of claim 14, wherein the outer tube has a strength enhancing ring disposed thereon and at least partially engaged within the channel.

16. The implant delivery device according to claim 1, wherein the outer tube or the inner tube provided with the pick and/or the fixing structure is further provided with an indication scale for indicating the distance the outer tube or the inner tube moves along the axial direction of the inner tube.