CN112773434A - Anchoring device - Google Patents

Abstract

The application provides an anchoring apparatus, mainly include sleeve pipe subassembly and anchoring assembly, main sleeve pipe and the mutual connection of auxiliary sleeve pipe detachably of sleeve pipe subassembly, so as to form the sleeve pipe passageway that runs through the sleeve pipe subassembly, anchoring assembly's anchor and auxiliary assembly detachably interconnect and movably wear to establish in the sleeve pipe passageway, the anchor that auxiliary assembly can be forced drive to be in non-anchoring state moves along the sleeve pipe passageway, make the anchor can stretch out and produce deformation in the sleeve pipe passageway, switch over to anchoring state by non-anchoring state, thereby carry out anchoring operation, therefore, the application has the advantage that anchoring effect is good and easy and simple to handle.

Description

Anchoring device

Technical Field

The embodiment of the application relates to the technical field of medical instruments, in particular to an anchoring instrument.

Background

In various types of surgical procedures, such as heart valve interventional repair procedures, it is often necessary to anchor specific anchoring tissues with anchoring structures to achieve specific target actions.

In addition, if the size of the anchoring device can be reduced on the premise of ensuring the anchoring effect, the use experience of a patient can be improved, and the risk of wound infection of the patient can be effectively reduced.

In view of the above, there is a need for an anchoring instrument that can secure anchoring effect and can reduce the size of the instrument.

Disclosure of Invention

In view of the above, the present application provides an anchoring device to overcome the above problems or at least partially solve the above problems.

An embodiment of the present application provides an anchoring instrument, which includes: a ferrule assembly including a main ferrule and a secondary ferrule, the main ferrule being removably connectable with the secondary ferrule to form a ferrule passage therethrough; the anchoring component comprises an anchoring component and an auxiliary component, the anchoring component is detachably connected with the auxiliary component and movably arranged in the sleeve pipe channel in a penetrating way, and the anchoring component can be deformed to switch between an anchoring state and a non-anchoring state; wherein the auxiliary element can be forced to drive the anchoring element in the non-anchoring state to move along the sleeve channel, so that the anchoring element can extend out of the sleeve channel and generate deformation to switch from the non-anchoring state to the anchoring state.

Optionally, the anchoring member includes an anchor hook and a hook base, wherein the hook base is used for fixing the anchor hook and detachably connecting the auxiliary member.

Optionally, the auxiliary component may be forced to drive the anchor component via the hook seat to move along the cannula passage toward the distal end of the cannula assembly until the hook seat is fully inserted into the main cannula.

Optionally, when the anchor is switched to the anchoring state and completely enters the main sleeve, the auxiliary sleeve may be detached from the main sleeve for removal, and the auxiliary element may be detached from the hook base for removal.

Optionally, the main cannula further comprises a limiting structure disposed in the cannula passage for limiting a maximum distance of movement of the hook base towards the distal end of the cannula assembly.

Optionally, the stop structure comprises a ramp formed within the cannula passage proximate the distal end of the cannula assembly.

Optionally, the stop structure is a flared structure formed within the cannula passage and proximate to the distal end of the cannula assembly.

Optionally, the hooking seat further has an abutting structure, and the abutting structure abuts against the limiting structure, so that the hooking seat is positioned in the sleeve passage.

Optionally, the abutment structure comprises an outer slope formed on an outer side wall of the hook seat.

Alternatively, the anchor may be made of a memory alloy material.

According to the technical scheme, the anchoring instrument can provide a better anchoring effect, so that a specific target action can be executed in the operation process.

Moreover, the anchoring device provided by the application can conveniently perform dissociation operation to remove auxiliary parts in the anchoring device after the anchoring operation is completed, so that the volume of the anchoring device left in a patient body is effectively reduced, the use experience of the patient is improved, and the risk of wound infection is reduced.

In addition, the anchoring instrument of the application also has the advantages of simple structural design and few component parts, and can reduce the manufacturing cost.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the embodiments of the present application, and other drawings can be obtained by those skilled in the art according to the drawings.

FIG. 1 is an exploded view of an anchoring device according to the present application;

FIG. 2 is a schematic structural view of the anchoring device of the present application in an anchored condition;

fig. 3 and 4 are cross-sectional illustrations of fig. 2, showing the anchoring instrument in a structural illustration at different stages of the anchoring operation;

fig. 5 shows a schematic structural view of the main sleeve of the anchoring instrument;

fig. 6 shows a schematic structural view of an auxiliary sleeve of the anchoring instrument;

fig. 7 shows a schematic structural view of the anchoring hook of the anchoring device;

fig. 8 shows a schematic structural view of the hook base of the anchoring device;

fig. 9 shows a schematic structural view of the auxiliary element of the anchoring instrument.

Element number

1: an anchoring instrument;

2: a bushing assembly;

20: a cannula passageway;

3: a main bushing;

32: a limiting structure;

322: a bevel;

324: a horn-shaped structure;

34: a main channel;

36, a first connecting part;

4: an auxiliary sleeve;

42: an auxiliary channel;

44: a second connecting portion;

5: an anchor assembly;

6: an anchor;

62: anchoring hooks;

622: a plug-in part;

624: a deformation section;

64: a hook seat;

642: inserting grooves;

644: a third connecting portion;

646: an abutting structure;

648: an outer bevel;

7: an auxiliary member;

72: and a fourth connecting portion.

Detailed Description

In order to make those skilled in the art better understand the technical solutions in the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application shall fall within the scope of the protection of the embodiments in the present application.

The following further describes specific implementations of the embodiments of the present application with reference to the drawings of the embodiments of the present application.

Theanchoring device 1 of the present application may be applied to a heart valve intervention repair operation, but is not limited thereto, and may be applied to any other surgical operation requiring tissue anchoring.

As shown in fig. 1, theanchoring instrument 1 of the present embodiment mainly comprises asleeve assembly 2 and ananchoring assembly 5.

Theferrule assembly 2 includes amain ferrule 3 and anauxiliary ferrule 4.

In this embodiment, themain cannula 3 and theauxiliary cannula 4 are detachably connected to each other to form acannula passage 20 through thecannula assembly 2.

Optionally, themain sleeve 3 has amain passage 34 axially through themain sleeve 3 and afirst connection 36 at the end of the main sleeve 3 (see fig. 5); theauxiliary sleeve 4 has anauxiliary passage 42 extending axially through theauxiliary sleeve 4 and asecond connection 44 at the end of the auxiliary sleeve 4 (see fig. 6).

Themain tube 3 and theauxiliary tube 4 are connected into a whole by thefirst connection portion 36 and thesecond connection portion 44 to form thetube assembly 2, and themain channel 34 and theauxiliary channel 42 are connected in series to form thetube channel 20 penetrating through the tube assembly 2 (refer to fig. 3 and 4).

Alternatively, the first andsecond connection portions 36, 44 are configured with mating male and female threaded structures, respectively.

Anchor assembly 5 includesanchor member 6 andauxiliary element 7.

In this embodiment,anchor member 6 andauxiliary member 7 are removably coupled to each other and movably disposed throughcannula passage 20 ofcannula assembly 2.

Alternatively, the anchoringelement 6 can be deformed to switch between an anchoring state and a non-anchoring state.

Optionally,auxiliary element 7 may be forced to moveanchor element 6 in the non-anchoring state alongcannula passage 20 ofcannula assembly 2, such thatanchor element 6 may be extended fromcannula passage 20 and deformed to switch from the non-anchoring state to the anchoring state, thereby performing the anchoring operation (see fig. 2).

Alternatively,anchor member 6 may include ananchor hook 62 and a hook base 64 (refer to fig. 1, 3, and 4), whereinhook base 64 is used to fixanchor hook 62 and detachably connectauxiliary member 7.

In this embodiment, the anchoring element 6 (the anchoring hook 62) may be made of a memory alloy material and has aninsertion portion 622 and a deformation portion 624 (see fig. 7), thehook base 64 includes aninsertion groove 642 and a third connecting portion 644 (see fig. 8), and theauxiliary element 7 includes a fourth connecting portion 72 (see fig. 9).

Theinsertion portion 622 is inserted into theinsertion groove 642 for fixedly connecting thehook 62 and thehook seat 64 to form the anchoringmember 6, and further, the third connectingportion 644 and the fourth connectingportion 72 provide thehook seat 64 and theauxiliary member 7 to be detachably connected with each other, so that the anchoringmember 6 is further connected with theauxiliary member 7 into a whole.

In the present embodiment, the third connectingportion 644 and the fourth connectingportion 72 are respectively configured as an external thread structure and an internal thread structure.

In this embodiment, the integrally connectedanchor 6 andauxiliary element 7 are movably disposed through thecannula passage 20 of thecannula assembly 2.

In this embodiment,auxiliary element 7 is forced to moveanchor element 6 alongcannula passage 20 towards the distal end of cannula assembly 2 (i.e. the end of anchoringdevice 1 remote from the operator) via hook seat 64 (refer to the state shown in fig. 3), untilhook seat 64 is fully inserted into main cannula 3 (refer to the state shown in fig. 2).

In the present embodiment, when the anchoringelement 6 is switched to the anchoring state and thehook base 64 is completely inserted into themain casing 3, theauxiliary casing 4 is detached from themain casing 3 to remove theauxiliary casing 4, and theauxiliary element 7 is detached from thehook base 64 to remove theauxiliary element 7.

Optionally, themain cannula 3 further comprises a stop structure 32 (refer to fig. 3, 4, 5) arranged in thecannula passage 20 for limiting the maximum distance thehook base 64 moves towards the distal end of thecannula assembly 2.

In this embodiment, thestop structure 32 may include aramp 322 formed in thecannula passage 20 near the distal end of thecannula assembly 2.

Optionally, thebevel 322 may circumferentially surround thecannula passage 20 to form a flaredstructure 324 within thecannula passage 20 and proximate to the distal end of thecannula assembly 2.

Wherein thestop structure 32 allows theanchor 62 to pass through and abut thehook base 64 to prevent thehook base 64 from being removed from thecasing passageway 20.

Furthermore, by the design of theinclined surface 322 of the limitingstructure 32, the friction between the anchoringhook 62 and thecasing passage 20 can be reduced, so as to guide the anchoringhook 62 to extend from thecasing passage 20 and perform the anchoring operation.

Optionally, thehook seat 64 further has anabutting structure 646, wherein the limitingstructure 32 can be abutted by the abuttingstructure 646, so that thehook seat 64 is positioned in thecannula passage 20.

In the present embodiment, the abuttingstructure 646 may include an outerinclined surface 648 formed on an outer sidewall of thehook seat 64.

Further, the steps of performing the anchoring operation using the anchoring instrument of the present application are as follows:

step 1: themain sleeve 3 is connected with theauxiliary sleeve 4 to constitute asleeve passage 20 of thesleeve assembly 2.

Step 2:anchor 6 is coupled toauxiliary assembly 7 and is disposed throughcannula passage 20 ofcannula assembly 2.

And step 3: a force is applied to theauxiliary element 7 to push theanchoring element 6 in the non-anchoring state by means of theauxiliary element 7 along thecannula passage 20 in the direction of the distal end of thecannula assembly 2 until the anchoring element 6 (hook 62 portion) protrudes from thecannula passage 20 and deforms to switch from the non-anchoring state to the anchoring state, and the anchoring element 6 (hookseat 64 portion) is fully inserted into themain cannula 3.

And 4, detaching theauxiliary sleeve 4 from themain sleeve 3, and detaching theauxiliary element 7 from thehook seat 64 so as to detach theauxiliary sleeve 4 and theauxiliary element 7, and only leaving the anchoring element 6 (comprising the anchoringhook 62 and the hook seat 64) of theanchoring device 1 and themain sleeve 3 in the patient.

In summary, the anchoring instrument that this application provided can provide good anchoring effect to have easy and simple to handle's advantage.

Moreover, the anchoring device that this application provided can be after accomplishing the anchoring operation, the auxiliary part on the dismantlement anchoring device to reduce the apparatus volume of keeping in the patient, in order to improve patient's use experience, and reduce the risk of wound infection.

In addition, the anchoring device of this application still has simple structure design, and the advantage that spare part is less can reduce product manufacturing cost.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the embodiments of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims (10)

1. An anchoring instrument, comprising:

a ferrule assembly including a main ferrule and a secondary ferrule, the main ferrule being removably connectable with the secondary ferrule to form a ferrule passage therethrough;

the anchoring component comprises an anchoring component and an auxiliary component, the anchoring component is detachably connected with the auxiliary component and movably arranged in the sleeve pipe channel in a penetrating way, and the anchoring component can be deformed to switch between an anchoring state and a non-anchoring state;

wherein the auxiliary element can be forced to drive the anchoring element in the non-anchoring state to move along the sleeve channel, so that the anchoring element can extend out of the sleeve channel and generate deformation to switch from the non-anchoring state to the anchoring state.

2. The anchoring device of claim 1, wherein the anchor comprises an anchor hook and a hook base, wherein the hook base is configured to secure the anchor hook and removably couple the auxiliary element.

3. The anchoring device of claim 2, wherein the auxiliary element is adapted to be forced to drive the anchor along the cannula passage towards the distal end of the cannula assembly via the hook seat until the hook seat is fully seated in the main cannula.

4. The anchoring device of claim 3, wherein the auxiliary sleeve is detachable from the main sleeve and the auxiliary element is detachable from the hook block when the anchor is switched to the anchoring state and fully advanced into the main sleeve.

5. The anchoring device of claim 3, wherein the main cannula further includes a stop structure disposed within the cannula passage for limiting a maximum distance that the hook block moves toward the distal end of the cannula assembly.

6. An anchoring instrument as recited in claim 5, wherein said stop structure includes a ramp formed within said cannula passage proximate a distal end of said cannula assembly.

7. An anchoring instrument as defined in claim 5, wherein said stop formation is a flared formation formed in said cannula passage proximate a distal end of said cannula assembly.

8. The anchoring device of claim 5, wherein the hook base further has an abutment structure by which the stop structure is abutted so that the hook base is positioned in the cannula passage.

9. The anchoring device of claim 8 wherein the abutment structure includes an outer ramp formed on an outer sidewall of the hook base.

10. An anchoring device as defined in claim 2, wherein said anchoring hook is made of a memory alloy material.

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