Adjustable prosthetic anatomical device holder and handle for the implantation of an annuloplasty ring
10028834 ยท 2018-07-24
Assignee
Inventors
- Melinda K. Kovach (Plymouth, MN, US)
- Susan E. Clegg (White Bear Lake, MN, US)
- Benjamin E. MORRIS (Jeffersonville, IN, US)
- Gregory R. Furnish (Louisville, KY, US)
- Eric E. Bielefeld (Floyds Knobs, IN, US)
- Simon McKnight Furnish (Louisville, KY, US)
Cpc classification
A61F2/2496
HUMAN NECESSITIES
B25G1/046
PERFORMING OPERATIONS; TRANSPORTING
A61B5/1076
HUMAN NECESSITIES
A61F2/2445
HUMAN NECESSITIES
B25B23/142
PERFORMING OPERATIONS; TRANSPORTING
B25B15/02
PERFORMING OPERATIONS; TRANSPORTING
International classification
A61F2/24
HUMAN NECESSITIES
B25B23/142
PERFORMING OPERATIONS; TRANSPORTING
B25B15/02
PERFORMING OPERATIONS; TRANSPORTING
Abstract
An adjustable prosthetic anatomical holder system may include an adjustable annuloplasty ring, a ring holder, and a positioning handle. The adjustable annuloplasty ring holder facilitates placement and adjustment of the annuloplasty ring during a cardiac surgical procedure. An optional positioning handle holds the adjustable annuloplasty ring during placement and suturing of the ring. The ring holder is constructed from two members that are slidably fit together in telescopic arrangement to accommodate adjustment of the ring size.
Claims
1. An adjustable prosthetic anatomical system, comprising: an adjustable prosthetic anatomical device including an anterior region and a posterior region, the device being transitionable in a controlled manner from a first diameter to a second diameter and being adapted to remain at the second diameter after such transition; an adjustment tool including an elongated shaft directly engageable with the device to effect transitioning of the device from the first diameter to the second diameter; and a holder comprising: a first member operably attachable to the posterior region of the device; a neck member extending from the first member, the neck member including a channel in which the elongated shaft of the adjustment tool is receivable; and a second member operably attachable to the anterior region of the device, wherein the first member and the second member are engageable with one another and slidable telescopically relative to one another in response to adjustment of the device from the first diameter to the second diameter.
2. The system of claim 1, wherein the channel has a generally U-shaped configuration.
3. The system of claim 1, wherein the elongated shaft of the adjustment tool is detachable from the neck member while the adjustment tool is operably engaged with the device.
4. The system of claim 1, wherein the first member defines an elongated slot along a longitudinal axis, and the second member includes a pair of opposing tabs receivable within the elongated slot to secure the second member to the first member, whereby the first and second members are slideable relative to each other along the longitudinal axis.
5. The system of claim 1, wherein the first member and the second member are each securable to the device by a length of suture, and the first and second members each include a cutting block to facilitate cutting of the length of suture.
6. The system of claim 5, wherein the cutting blocks are aligned along a common axis.
7. The system of claim 1, wherein the neck member further comprises a second channel configured and adapted to receive a positioning tool to facilitate positioning of the holder.
8. The system of claim 1, wherein the first member includes a longitudinally extending channel and the second member includes a longitudinally extending bar, the bar being translatable through the channel along a single axis of the first and second members.
9. The system of claim 8, wherein the first member and the second member are operably coupled to one another by a length of suture.
10. The system of claim 1, further comprising a positioning tool including a rod, the neck member including a channel adapted for receiving the rod.
11. The system of claim 10, wherein the rod is formed from a malleable material.
12. The system of claim 1, wherein the neck member further includes a second channel adapted for receiving a positioning tool.
13. The system of claim 12, further comprising a positioning tool assembled to the holder in an assembled position, the positioning tool including an elongated shaft, wherein the elongated shaft of the adjustment tool and the elongated shaft of the positioning tool are substantially parallel to one another in the assembled position.
14. The system of claim 13, wherein the positioning tool includes a handle having a proximal end and a distal end, the handle defining a groove extending between the proximal and distal ends and adapted to rotationally receive the elongated shaft of the adjustment tool therein, the elongated shaft of the positioning tool extending distally from the distal end of the handle.
15. The system of claim 14, wherein the handle includes at least one aperture adapted to receive suture therethrough to inhibit separation of the elongated shaft of the adjustment tool from the groove of the handle.
16. The system of claim 1, further comprising a locking mechanism including a cylindrical section that is securable within the channel, the locking mechanism releasably engaging the elongated shaft of the adjustment tool.
17. The system of claim 16, wherein the locking mechanism selectively inhibits rotation of the elongated shaft of the adjustment tool.
18. An adjustable prosthetic anatomical device holder, comprising: a first member operably attachable to a posterior region of an adjustable prosthetic anatomical device; a second member operably attachable to an anterior region of the device, the first member and the second member being engageable with one another and slidable telescopically relative to one another in response to adjustment of the device from a first diameter to a second diameter larger than the first diameter; a neck member on the first member, the neck member defining a first channel and a second channel; an adjustment tool received in the first channel, the adjustment tool being effective to transition the device from the first diameter to the second diameter; and a positioning tool received in the second channel, the positioning tool facilitating positioning of the holder.
19. The holder of claim 18, wherein the first channel has a generally U-shaped configuration.
20. The holder of claim 18, wherein the first member defines an elongated slot along a longitudinal axis, and the second member includes a pair of opposing tabs receivable within the elongated slot to secure the second member to the first member, whereby the first and second members are slideable relative to each other along the longitudinal axis.
21. The holder of claim 18, wherein the first member and the second member each include an opening for receiving a length of suture for securing the first and second members to the device.
22. The holder of claim 21, wherein the first and second members each include a cutting block to facilitate cutting of the length of suture.
23. The holder of claim 18, wherein the first member includes a longitudinally extending channel and the second member includes a longitudinally extending bar, the bar being translatable within the channel along a single axis of the first and second members.
24. The holder of claim 23, further including a length of suture tethering the first member to the second member.
25. The holder of claim 18, wherein the first member includes sections adapted to be snap fitted together with the second member.
26. The holder of claim 18, wherein the first and second members move relative to one another along a common plane.
27. The holder of claim 18, wherein the first and second members move relative to one another along a single axis of the holder.
28. The holder of claim 18, wherein the second member includes a bar having a projection adapted to be received within a groove provided in the first member.
29. An adjustable prosthetic anatomical system, comprising: an adjustable prosthetic anatomical device including an anterior region and a posterior region, the device being transitionable from an initial diameter to a second diameter larger than the initial diameter; an adjustment tool directly engageable with the device to effect transitioning of the device from the first diameter to the second diameter; and a holder comprising: a first member operably attachable to the posterior region of the device; and a neck member extending from the first member, the neck member including a channel in which the elongated shaft of the adjustment tool is receivable; and a second member operably attachable to the anterior region of the device, wherein the first member and the second member are engageable with one another and slidable telescopically relative to one another in response to the transition of the device from the initial diameter to the second diameter.
30. An adjustable prosthetic anatomical system, comprising: an adjustable prosthetic anatomical device including an anterior region and a posterior region, the device being transitionable in a controlled manner from a first diameter to a second diameter and being adapted to remain at the second diameter after such transition; an adjustment tool including an elongated shaft directly engageable with the device to effect transitioning of the device from the first diameter to the second diameter; and a holder comprising: a first member operably attachable to the posterior region of the device; and a second member operably attachable to the anterior region of the device, wherein the first member and the second member are engageable with one another and slidable telescopically relative to one another in response to adjustment of the device from the first diameter to the second diameter.
31. An adjustable prosthetic anatomical system, comprising: an adjustable prosthetic anatomical device including an anterior region and a posterior region, the device being transitionable from an initial diameter to a second diameter larger than the initial diameter; an adjustment tool directly engageable with the device to effect transitioning of the device from the first diameter to the second diameter; and a holder comprising: a first member operably attachable to the posterior region of the device; and a second member operably attachable to the anterior region of the device, wherein the first member and the second member are engageable with one another and slidable telescopically relative to one another in response to the transition of the device from the initial diameter to the second diameter.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
(1) By way of description only, embodiments of the present disclosure will be described herein with reference to the accompanying drawings, in which:
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DETAILED DESCRIPTION
(19) Particular embodiments of the present disclosure will be described with reference to the accompanying drawings. In the figures and in the description that follow, in which like reference numerals identify similar or identical elements, the term proximal will refer to the end of the device that is closest to the operator during use, while the term distal will refer to the end of the device that is farthest from the operator during use. The term posterior will refer to a first region of the device, while the term anterior will refer to a second region of the device. The term diameter will refer generally to the size, shape, and/or opening of the adjustable prosthetic anatomical device, e.g., adjustable annuloplasty ring, which is adjusted in accordance with the invention as to be described.
(20) Adjustable annuloplasty rings enable resizing of the ring during the surgical repair. Examples of an adjustable annuloplasty ring are disclosed in the aforesaid U.S. Pat. App. Pub. No. 2011/0066231. Disclosed herein are embodiments of annuloplasty ring holders and handles that facilitate handling of differently sized annuloplasty rings and adjustable annuloplasty rings including adjustable mitral valve rings.
(21) An embodiment of an annuloplasty ring holder will now be described with reference to
(22) The annuloplasty ring holder 100 includes first or posterior member 120 and second or anterior member 140 that are movable relative to one another along a common plane in one axial direction to adjust the overall length L of the annuloplasty ring holder 100 in a generally telescopic manner. The first member 120 and the second member 140 are secured to the corresponding regions of ring 50 so that the overall length L of the annuloplasty ring holder 100 is capable of changing as the diameter D of the ring 50 changes (
(23) The first member 120 and the second member 140 are releasably attachable or securable to one another to facilitate sliding movement of the first member 120 with respect to the second member 140 along a generally common plane such as defined between facing surfaces 4a, 4b while inhibiting separation of the first member 120 from the second member 140. One of the first and second members 120, 140 includes one or more projecting tabs 14a, 14b that are releasably securable within a longitudinally extending slot 12 defined in the other one of the first and second members 120, 140, thereby permitting axial movement of the first and second members 120, 140 with respect to one another while inhibiting other movement of the first and second members 120, 140 with respect to one another. The first and second members 120, 140 may be formed from any suitable material including a transparent material, e.g., a transparent plastic or polymer, to facilitate a substantially unobstructed view of the patient's valve (not shown) through the holder 100.
(24) As shown in
(25) The tab members 14a, 14b are capable of small deflections relative to one another and are biased toward an expanded state. Placement or removal of the tabs 14a, 14b from the slot 12 is facilitated by compressing the tabs 14a, 14b together, thereby decreasing the distance between the tabs 14a, 14b and permitting the tabs 14a, 14b to be inserted into or removed from the slot 12. In the expanded state, the tabs 14a, 14b are configured and adapted to engage a surface of the first member 120, the interaction of the tabs 14a, 14b with the surface of the first member 120 inhibits separation of the first and second members 120, 140.
(26) When the tab members 14a, 14b are secured within the elongated slot 12, for example, by a snap-fit, the first member 120 and the second member 140 are slidable relative to one another along the longitudinal axis defined by the elongated slot 12, but separation of the first member 120 from the second member 140 is inhibited. After the first and second members 120, 140 are operatively coupled, sliding of the first member 120 with respect to the second member 140 along longitudinal axis x of the holder 100 effects a change in the length L of the holder 100 as desired to fit the holder 100 to the ring 50 and to accommodate size adjustment of the ring.
(27) The first and second members 120, 140 may move relative to one another to adjust the overall length L of the holder 100 before or after attachment to the ring 50. Since the overall length L of the holder 100 and the diameter D of the ring 50 are adjustable, both the overall length L of the holder 100 and the diameter D of the ring 50 may be adjusted while the holder 100 remains attached to the ring 50.
(28) Securing the holder 100 to the ring 50 will now be described with reference to
(29) Because the tabs 14a, 14b snap-fit the second member 140 to the first member 120, the first member 120 and the second member 140 are inhibited from separating from one another during the procedure, including after the attachment suture S is cut from one or both of the first and second members 120, 140, respectively. This locking mechanism facilitates the removal of the assembled holder 100, including both the first and second members 120, 140, after placement of the ring 50. Removal of the first and second members 120, 140, respectively, is facilitated by having the first and second members 120, 140 coupled to each other in some fashion. For example, a single instrument (not shown) may grasp the assembled holder 120, 140 without having to grasp the first and second members 120, 140 separately. In addition, because the first and second members 120, 140 are each smaller in size than the diameter D of the ring 50, coupling of the first and second members 120, 140 inhibits the potential of one of the first and second members 120, 140 falling through the center of the ring 50 once the attachment suture S is cut or otherwise separated from the ring 50.
(30) As shown in
(31) The neck member 10 may include a channel 17 for the reception of an adjustment tool having an elongated shaft (not shown) that is configured and adapted to be operably coupled to ring 50, such as to the gear 52 of ring 50, to effect adjustment of the diameter D of the ring 50. The neck member 10 may be generally U-shaped such that the channel defined by the neck member 10 has a partially open perimeter. The U-shaped configuration of the neck member 10 facilitates detachment of the holder 100 from the ring 50 while the adjustment tool (not shown) remains operably coupled to the ring 50. In an embodiment, the adjustment tool (not shown) may be secured to the neck member 10 with suture to facilitate stabilization of the adjustment tool with respect to the neck member 10. In this regard, the neck member 10 may also be provided with one or more cutting blocks (not shown) to indicate where to cut the suture prior to removal of the adjustment tool.
(32) Once the ring 50 is in the desired target location, the ring 50 may be sutured to the patient's tissue (not shown) to secure the ring 50 thereto. The holder 100 may also be modified to incorporate a positioning tool as to be described generally with reference to
(33) Another embodiment of a ring holder will now be described with respect to
(34) The first member 220 includes a channel 232 configured and adapted to receive a bar 230 of the second member 240 to facilitate sliding of the bar 230 relative to the first member and the adjustment of the overall length of the holder 200 as measured from the anterior region A to the posterior region P of the holder 200. The channel 232 may include a section 234 that engages a posterior region P of the bar 230 to limit the range within which the first and second members 220, 240 may axially translate with respect to one another. The channel 232 may include a groove within which the sides of the bar 230 are positioned, thereby inhibiting separation of the bar 230 from the channel 232, while permitting relative sliding movement.
(35) The first member 220 is securable to the posterior region P of the ring 50, and the second member 240 is securable to the anterior region A of the ring 50. Securing of the first member 220 to the ring 50 is achievable by placing attachment suture through the apertures 213 defined within the first member 220 and around the ring 50. Securing of the second member 240 to the ring 50 is achievable by placing attachment suture through the apertures 211 defined within the second member 240 and around ring 50. The second member 240 includes cutting blocks 218 that each includes a channel 219. The channel 219 of one cutting block 218 is inline with the channel 219 of the other cutting block 218 such that a single stroke of a scalpel (not shown) may cut both attachment sutures securing the second member 240 to the anterior region A of the ring 50. In further embodiments, the first member 220 may include cutting blocks 209 to indicate the approximate location of the attachment suture. By indicating where to cut the attachment suture, the cutting blocks inhibit the possibility of inadvertently cutting suture that is utilized for purposes other than securing the holder 200 to the ring 50 and enable the attachment suture to remain attached to the first member 220 or the second member 240 to facilitate removal of the attachment suture from the surgical site.
(36) The first member 220 includes a neck member 210 that defines a U-shaped channel 217 for the reception of an adjustment tool (not shown) that is configured and adapted to engage an adjustment mechanism of the ring 50, such as a gear 52 of the ring 50, to adjust, i.e., increase or decrease, the diameter of the ring 50. The neck member 210 provides a location at which a surgeon may grasp the holder 200. In addition, the U-shaped configuration of the channel 217, as previously described, facilitates removal of the holder 200 subsequent to implantation of the ring 50 while the adjustment tool (not shown) remains engaged with the gear 52 of the ring 50. The neck member 210 may also include a channel 215 adapted and configured for the reception of an elongated shaft of a positioning tool that facilitates the holding and manipulation of the holder 200. The elongated shaft of the positioning tool (not shown) may be formed from a malleable material or wire that may be bent to facilitate proper positioning and orientation of the ring 50 when it is attached to the holder 200. An example of a positioning tool will be described hereinafter, such as with reference to
(37) Another embodiment of an annuloplasty ring holder will now be described with reference to
(38) As shown in
(39) A holder handle 400 will now be described with reference to
(40) The holder handle 400 includes a positioning rod 420 that is attachable to a holder 500 to facilitate desired positioning of the ring 50. The positioning rod 420 may be formed from a material that is malleable and/or bendable, e.g., nickel titanium alloy or annealed stainless steel. This allows adjustment of the angle of the handle 400 relative to the ring 50. As shown in
(41) In another embodiment shown in
(42) In an embodiment shown in
(43) A locking member 800 will now be described with reference to
(44) Referring now to
(45) As shown in
(46) Another embodiment of an annuloplasty ring holder 950 will now be described with reference to
(47) In the embodiment shown, the cross member 958 includes apertures 960 to receive a suture for securing to a ring 50. The cross member 958 includes a centralized cutting block 964. The cutting block 964 is formed by two spaced apart members adapted to receive a scalpel for severing a suture which passes transversely therethrough. To facilitate a surgeon's placement of a scalpel, the cutting block may be bound by indicia, such as colored (e.g., black) boxes or other indicia, which provide a visual identification of the location of the cutting block. An upstanding protrusion or projection 968 is provided on the upper surface of bar 956 adjacent its terminal end opposite the cross member 958.
(48) The first member 952 is formed from a body which includes a pair of spaced apart legs 970a, 970b which define an elongated open channel 972 therebetween. The legs 970a, 970b have inwardly facing ribs 974a, 974b to provide support for the bar 956 when received within the channel. A tab member 976 overlying the channel 972 has one end attached or formed integral with the first member 952. The tab member 976 is bound on opposite sides by elongated openings 978a, 978b extending between the tab member and the legs 970a, 970b, respectively. The construction of the tab member 976 and openings 978a, 978b render the tab member flexible. The underside of the tab member includes an elongated groove 980 bound at opposite ends by portions of the tab member 976. The bar 956 of the second member 954 is slidingly received within the channel 972 of the first member 952. As the bar enters the channel, the projection 968 initially engages the bottom of the tab member 976, so as to displace the tab member upwardly until the projection enters the groove 980. At that point, the tab member 976, due to its resilient nature, will be displaced downwardly into its original orientation, capturing the projection 968 within the groove 980. In this arrangement, the second member 954 is adapted to telescopically slide within the first member 952, being limited in movement distally and proximally by the projection 968 being captured within the groove 980. In an embodiment, the first and second members 952, 954 may be separated if desired by displacing the tab member 976 upwardly to allow the projection 968 to be disengaged from the groove 980. Accordingly, the first and second members 952, 954 telescopically move relative to one another within a common plane along a single axis of the holder 950.
(49) The holder 950 may further include apertures 982 to accept a suture for securing the first member 952 to the ring 50. The suture may extend through a channel 989 provided on the tab member 976. A cutting block 986 can be formed on the tab member 976 by spaced apart legs which define a transverse opening intersecting the channel 989 and suture therein. As previously described, the cutting block 986 facilitates severing of the suture to enable removal of the holder 950 from ring 50. To facilitate identification of the cutting block 986, the spaced apart legs may be provided with appropriate indicia, such as colored or graphic designations in the manner previously described. The holder 950, likewise, may include a neck member 988 to accommodate an adjustment tool and optionally a positioning tool in the manner previously described. Although the invention herein has been described with reference to particular embodiments, it is to be understood that these embodiments are merely illustrative of the principles and applications of the present invention. It is therefore to be understood that numerous modifications may be made to the illustrative embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. For example, although the devices and systems are shown and described as being used for the repair and/or reconstruction of the mitral valve, the devices and systems may be used for the repair and/or reconstruction of other valves.