Salazar v. Medtronic, Inc ( 2001 )


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  •                  IN THE UNITED STATES COURT OF APPEALS
    FOR THE FIFTH CIRCUIT
    _____________________
    No. 99-41089
    _____________________
    BILLYE JEANNE MARTIN,
    Plaintiff-Appellant,
    versus
    MEDTRONIC, INC.,
    Defendant-Appellee.
    -----------------------------------------------------------------
    _____________________
    No. 99-41090
    _____________________
    LIBRA SALAZAR,
    Plaintiff-Appellant,
    versus
    MEDTRONIC, INC.,
    Defendant-Appellee.
    _________________________________________________________________
    Appeals from the United States District Court
    for the Southern District of Texas
    _________________________________________________________________
    June 18, 2001
    Before REYNALDO G. GARZA, JOLLY, and HIGGINBOTHAM, Circuit Judges.
    E. GRADY JOLLY, Circuit Judge:
    In this consolidated appeal,1 we address a question of federal
    preemption: whether, based on Medtronic’s compliance with the Food
    and Drug       Administration’s   (“FDA”)     rigorous   premarket    approval
    procedure      (“PMA”),   the   plaintiffs’    Texas   common   law   products
    liability tort claims are preempted by 21 U.S.C. § 360k, the
    Medical Devices Amendments (“MDA”) to the Food, Drug, and Cosmetic
    Act (“FDCA”).      We have addressed this issue before.         In Stamps v.
    Collagen Corp., 
    984 F.2d 1416
    , 1422 (5th Cir. 1993), we held that
    similar state product liability claims were preempted.                Since we
    decided Stamps, however, the Supreme Court has spoken on the issue.
    See Medtronic, Inc. v. Lohr, 
    518 U.S. 470
    , 477, 
    116 S. Ct. 2240
    , 
    135 L. Ed. 2d 700
    (1996).       The Supreme Court did not specifically decide
    the case before us, yet spoke in a way that overruled Stamps in
    part.       Lohr is a difficult opinion to apply in this case; first,
    because it involves a process far less specific in its requirements
    than the PMA process involved in both this case and Stamps, and
    second, because on points important to this appeal, the Lohr court
    was fractured.       In any event, we ultimately determine that for
    purposes of deciding this appeal, Stamps is binding precedent that
    controls the outcome of the case.           Accordingly, we hold that the
    1
    The cases have been consolidated for the purposes of appeal
    only.   The appellants, however, brief their appeal as if the
    district court considered their cases on a consolidated basis.
    Therefore, we treat the procedural history in the same manner.
    2
    Texas state product liability claims in this case are preempted by
    the   MDA,    and   we   affirm    the   judgment   of    the    district    court
    dismissing the complaint.
    I
    Billye Jeanne Martin and Libra Salazar each claim that they
    were injured by Medtronic’s defective pacemaker (Model 4004). They
    allege that the pacemaker contained a defective “ventricular lead,”
    the wire that carries current into the heart muscle. Their product
    liability     claims     include   negligence,    gross   negligence,       strict
    liability, breach of warranty, and violation of the Texas Deceptive
    Trade Practices Act; all claims are based on alleged deficiencies
    in the safety and effectiveness of the design, manufacturing
    process, warnings, and labeling of the lead.
    The district court initially granted Medtronic’s motion for
    summary judgment only in part, finding that the MDA preempted
    Salazar’s and Martin’s design, manufacturing process, and warning
    claims.      The district court reasoned that in all these areas, the
    FDA, through its PMA procedure,2 had approved Medtronic’s product.
    The   district      court,   however,    denied   summary       judgment    on   the
    2
    Under the FDA’s PMA process, the manufacturer of the medical
    device must submit a detailed application to the FDA, including
    information on product specifications, manufacturing, intended use
    and proposed labeling. Qualified experts review each application
    and prepare a report and recommendation. The FDA then has six
    months to accept or reject the application. See 21 U.S.C. § 360e;
    Stamps v. Collagen Corp., 
    984 F.2d 1416
    , 1419 (5th Cir. 1993).
    3
    plaintiffs’     claims     that     Medtronic    had    deviated       from    FDA
    requirements.        Following further discovery, Medtronic renewed its
    summary judgment motion.            The district court then granted the
    renewed motion, finding that appellants failed to produce evidence
    of   alleged   deviations,     and    entered    judgment   dismissing        each
    complaint.     These appeals, now consolidated, present the single
    issue of whether the FDA’s PMA procedure preempts the state law
    tort claims.
    II
    We begin our consideration of this question of preemption by
    making a few preliminary observations that serve to place in
    context the even more precise issue before us--to what extent is
    our case today decided by precedents of this court and the Supreme
    Court.   The MDA classifies medical devices into three categories
    based on the degree of risk they pose to the public.                     Class I
    devices pose little or no risk to public health and are subject
    only to general controls on manufacturing.              Class II devices are
    potentially more harmful and may be subject to regulations and
    product specifications.            Class III devices, the most strictly
    regulated,     are    “[d]evices    that    either   ‘presen[t]    a   potential
    unreasonable risk of illness or injury,’ or which are ‘purported or
    represented to be for a use in supporting or sustaining human life
    or for a use which is of substantial importance in preventing
    4
    impairment of human health.’”      
    Lohr, 518 U.S. at 477
    (quoting 21
    U.S.C. § 360c(a)(1)(C)).
    A pacemaker is classified as a “Class III” medical device.      As
    such, it must undergo an indisputably thorough, rigorous, and
    costly premarket review (some 1,200 FDA man-hours at hundreds of
    thousands of dollars in cost) by the FDA.        Under this PMA process,
    the manufacturer must give the FDA a “reasonable assurance” that
    the product is safe and effective.         Although this term does not
    sound excessively demanding, the PMA process is rigorous. It
    requires manufacturers to submit detailed information regarding the
    safety and efficacy of their devices.       This includes, among other
    things, full reports of all information that is known by the
    applicant, samples of both labeling and the device itself, and a
    full    description   of   the   methods   and    facilities   used   for
    manufacturing and installation of the device.          See 21 U.S.C. §
    360e(c)(1) (describing the components of a PMA application). The
    FDA then reviews the application, spending an average of 1,200
    hours on each submission before granting marketing approval.          The
    statutory basis for this process, and its exceptions, are set forth
    at length in 
    Lohr, 518 U.S. at 477
    , and need not be reiterated
    here.
    It is central to our resolution of this appeal that we have
    held that § 360k preempts these state products liability claims
    5
    when the device manufacturer complies with the FDA’s PMA process.
    See 
    Stamps, 984 F.2d at 1422
    .          In this appeal, it is not disputed
    that Medtronic has complied with the FDA’s PMA process in the
    creation of its pacemakers.      Thus, based on the holding of Stamps,
    the claims here should be preempted.
    But yet there is a twist. After Stamps, the Supreme Court
    considered the scope of MDA preemption of state law claims in the
    “§ 510(k) notification” process,3 an exception to the far more
    demanding PMA review process.           See Lohr, 
    518 U.S. 470
    .         The §
    510(k) process allows improvements to existing devices to be
    rapidly introduced into the market by foregoing the extensive
    review in the PMA process.        
    Id. at 478.
          While the PMA process
    requires an inquiry into the risks and efficacy of each device
    through a variety of reports and submissions, as described above,
    the § 501(k) process only requires the manufacturer to show that
    the device is “substantially equivalent” to devices already on the
    market.   Under the § 501(k) process, the manufacturer must submit
    proposed labeling, labels, and advertisements that describe the
    device,   its   intended   use   and    the   directions   for   its   use;   a
    statement indicating how the device is similar to or different from
    comparable products; a statement that the submitter believes that
    3
    The section number refers to the original section of the MDA
    containing the provision.
    6
    the information is accurate and complete; and any additional
    information     necessary      for   the     FDA    Commissioner    to   make   a
    determination     as    to    whether       the    device   is   “substantially
    equivalent.”    See Buckman Co. v. Plaintiffs’ Legal Committee, 
    531 U.S. 341
    , 
    121 S. Ct. 1012
    , 1016, 
    148 L. Ed. 2d 854
    (2001); 21 C.F.R.
    §§ 807.87, 807.92.           The manufacturer does not have to submit
    information on the safety or efficacy of the device.                In contrast
    to the 1,200 hours that it takes to complete a PMA review, a §
    510(k) review takes an average of 20 hours.             
    Lohr, 518 U.S. at 479
    .
    As the Supreme Court has noted, “[t]he § 510(k) notification
    process is by no means comparable to the PMA process.”               
    Id. at 478-
    79.
    Lohr, however, is highly relevant to this appeal because it
    considered in some detail the preemption statute that is applicable
    both to the § 510(k) process and the PMA process.                Notwithstanding
    its relevance, the Supreme Court decision must be more than merely
    illuminating with respect to the case before us, because a panel of
    this court can only overrule a prior panel decision if “such
    overruling is unequivocally directed by controlling Supreme Court
    precedent.”    United States v. Zuniga-Salinas, 
    945 F.2d 1302
    , 1306
    (5th Cir. 1991).       This means that Stamps should apply to this case
    unless “an intervening Supreme Court case explicitly or implicitly
    overrul[es] that prior precedent.”                United States v. Short, 181
    
    7 F.3d 620
    , 624 (5th Cir. 1999).          Thus, the first, and ultimately
    only, question we face is the degree to which Stamps retains
    precedential value after the Supreme Court’s decision in Lohr.
    A
    To resolve the impact of Lohr on our precedent in Stamps, we
    begin by setting out the relevant statutory and regulatory language
    that we must consider.       Section 360k(a) (“General Rule”) is the
    preemption provision of the MDA governing the extent to which the
    MDA preempts state law.       It applies both to situations arising
    under the § 510(k) process and the PMA process.        It states:
    [N]o State or political subdivision of a State may
    establish or continue in effect with respect to a device
    intended for human use any requirement–-
    (1) which is different from, or in addition to, any
    requirement applicable under this chapter to the device,
    and
    (2) which relates to the safety or effectiveness of
    the device or to any other matter included in a
    requirement applicable to the device under this chapter.
    21   U.S.C.   §   360k(a).    The   FDA   has   promulgated   regulations
    interpreting § 360k, which state:
    State or local requirements are preempted only when the
    Food and Drug Administration has established specific
    counterpart regulations or there are other specific
    requirements applicable to a particular device under the
    act, thereby making any existing divergent State or local
    requirements applicable to the device different from, or
    in addition to, the specific [FDA] requirements.
    21 C.F.R. § 808.1(d).
    B
    8
    With both the statute and the regulations in mind, we turn to
    consider the intervening Supreme Court decision, Medtronic Inc. v.
    Lohr, 
    518 U.S. 470
    .   In Lohr, the Supreme Court considered whether
    state tort claims were preempted when the FDA subjected the medical
    device to § 510(k) notification under the MDA, a process, as we
    have noted, far less thorough than the PMA process presented in
    this case.4    In a five to four decision, the Court held that the
    state tort claims in that § 510(k) case were not preempted.            The
    Court,   however,   fractured   over   the   question   of   whether   the
    preemption section of the MDA would ever preempt general state law
    tort claims.
    The facts underlying the plaintiffs’ claims in             Lohr are
    similar to the facts in our case: Lohr and her husband sued on
    state law claims over a defective lead in a pacemaker.             Their
    complaint alleged both negligence and strict liability claims for
    defective design, failure to warn, and negligent manufacturing.
    Unlike our case, however, which involves a rigorous review under
    4
    As the Supreme Court itself has observed, the PMA process and
    the § 510(k) process are clearly distinguishable. See 
    Lohr, 518 U.S. at 493
    (noting that substantially equivalent devices have
    “never been formally reviewed under the MDA for safety or efficacy”
    and that the FDA does not consider the § 510(k) process “official
    FDA approval”); 
    Buckman, 121 S. Ct. at 1017
    (“Admittedly, the §
    510(k) process lacks the PMA review’s rigor: The former requires
    only a showing of substantial equivalence to a predicate device,
    while the latter involves a time-consuming inquiry into the risks
    and efficacy of each device.”).
    9
    the PMA process, Medtronic began marketing the pacemaker lead in
    Lohr     after    the   FDA     had   found   only   that     the    device    was
    “substantially equivalent” to devices already on the market under
    § 510(k).        Indeed, the FDA itself “emphasized . . . that [the §
    510(k)    notification        process]   should   not   be    construed   as   an
    endorsement of the pacemaker lead’s safety.” 
    Lohr, 518 U.S. at 480
    .
    The Court’s reasoning largely focused on the requirements of
    the FDA’s regulation interpreting § 360k, cited and quoted earlier
    in this opinion.        The Court observed that certain factors must be
    present, according to the regulations, before § 360k would preempt
    state requirements.           First, there must be a state requirement
    specifically developed with respect to medical devices that is
    different from or in addition to federal requirements. Second, the
    state requirement must relate to the safety or effectiveness of the
    device, or “‘other matter included in a requirement applicable to
    the device.’” 
    Lohr, 518 U.S. at 500
    (quoting 21 U.S.C. § 360k(a)).
    State requirements of “‘general applicability’ are not preempted
    except where they have ‘the effect of establishing a substantive
    requirement for a specific device.’” 
    Id. Third, the
    federal
    requirement must be specific to the particular device.                 The Court
    held that because neither the federal requirements relating to the
    §   510(k)   notification        procedure    nor    the     state   common    law
    10
    requirements were specific to the device, Lohr’s tort claims were
    not preempted.
    Although the Court concluded that Lohr’s tort claims were not
    preempted, the majority split on the broader question of whether
    the   duties   enforced   by   common   law   actions    could   ever   be
    “requirements” for the purpose of preemption.           The four justice
    plurality written by Justice Stevens, distinguishing the MDA from
    the statute in Cipollone v. Liggett Group, Inc., 
    505 U.S. 504
    , 
    112 S. Ct. 2608
    , 
    120 L. Ed. 2d 407
    (1992), found that general common law
    actions were not the “requirements” that Congress was concerned
    about when it enacted the preemption provision.            Thus, Justice
    Stevens concluded that Ҥ 360k(a) simply was not intended to pre-
    empt most, let alone all, general common-law duties enforced by
    damages actions.” 
    Lohr, 518 U.S. at 491
    .       That, however, was only
    a plurality.
    The meaning of Lohr as applied to our case becomes confusing
    at this point. Concurring with only parts of the majority writing,
    Justice Breyer found that the MDA could in fact preempt state tort
    suits.   Relying on Cipollone, in which the “Court made clear that
    similar language ‘easily’ encompassed tort actions,” he reasoned
    that a state requirement that takes the form of a duty of care is
    essentially no different from a state statute or regulation.            
    Id. at 504
    (Breyer, J., concurring).        Justice Breyer noted, however,
    11
    that the FDA promulgated a regulation that allows preemption when
    there    are   “‘specific     [federal]       requirements    applicable        to   a
    particular device.’” 
    Id. at 506
    (quoting 21 C.F.R. § 808.1(d)
    (1995)).       Because    the    FDA    requirements      relating   to       design,
    manufacturing and labeling in the § 510(k) notification process at
    issue in Lohr were “not ‘specific’ in any relevant sense,” Justice
    Breyer    concluded    that     the    FDA    did   not   intend   the    §    510(k)
    notification procedures to preempt state tort claims.                
    Id. at 507.
    The four justices concurring in part and dissenting in part,
    relying on the § 360k preemption language and not the FDA’s
    regulations, concluded that “state common-law damages actions do
    impose ‘requirements’ and are therefore pre-empted where such
    requirements would differ from those imposed by the FDCA.”                     
    Id. at 509
    (O’Connor, J., concurring in part, dissenting in part). Justice
    O’Connor noted that a majority of the Court in Cipollone agreed
    that state common law damages actions do impose “requirements,” and
    that the rationale behind that decision was equally applicable in
    Lohr.    
    Id. at 510.
        Thus, given Justice Breyer’s concurrence, five
    justices would agree that state common law actions do impose
    ”requirements” that can be preempted under the statute, as found in
    Cipollone.
    Because only parts of Justice Stevens’s opinion commanded a
    majority, extracting the final meaning of Lohr is no easy task.
    12
    Assessing    Lohr    in    the       light      of       the     three    requirements           for
    preemption described above, the Court first held that general
    common law duties do not impose requirements that are different
    from or in addition to the § 501(k) process.                         The Court offers no
    clear guidance on when the common law may satisfy the second
    factor, that is, that the state requirement relate to the safety or
    effectiveness       of    the        device         or     establish          a    “substantive
    requirement” for a specific device.                         Although Justice Breyer’s
    concurrence very specifically disavows the view that common law
    duties cannot provide substantive requirements for the purpose of
    preemption, neither his concurrence nor the plurality opinion
    offers much help to us in developing the point.                                As to the third
    factor, the Court held that the FDA’s “substantially equivalent”
    determination    under         the    §   501(k)           process       is    not      a   federal
    regulation specific to a particular device, at least under the
    facts of Lohr.           Because these holdings do not explicitly or
    implicitly decide the case before us, we must compare Lohr with
    Stamps, the circuit precedent that we are required to follow.
    C
    Our    decision      in    Stamps,         
    984 F.2d 1416
    ,        which     relies    on
    Cipollone and predates Lohr, held that state tort claims in that
    case were    preempted         under      the       MDA.    In    Stamps,         the   plaintiff
    contracted a rare autoimmune disease from being injected with
    13
    defendant’s Class III products. She then filed suit alleging
    defective design, inadequate warnings, and negligent failure to
    warn.   Because the FDA scrutinized the labeling, design, and
    manufacturing of a product during the PMA process, we determined
    that each   of   these   state   claims    covered   an   area   stringently
    regulated by the FDA.
    We then addressed the question of whether state tort claims
    could be considered state “requirements” under § 360k.            Relying on
    the Supreme Court’s preemption doctrine as laid out in Cipollone,
    
    505 U.S. 504
    , we noted that the term “requirements” in § 360k(a)
    “‘sweeps broadly’ and encompasses common law tort actions within
    its preemptive scope.”        
    Stamps, 984 F.2d at 1421
    .           Thus, the
    specific duties in Texas tort liability create requirements in
    addition to the strict requirements of the Class III PMA process.
    Stamps concluded that “[s]tate tort causes of action–-to the extent
    they relate to safety, effectiveness, or other MDA requirements--
    constitute requirements ‘different from, or in addition to’ the
    Class III process; they are, therefore, preempted.” 
    Stamps, 984 F.2d at 1424
    .
    III
    When   we   turn    to   consider    the   impact    of   Lohr   on   the
    precedential effect of Stamps, we can immediately conclude that the
    14
    Supreme Court did not explicitly overrule the case.   Neither do we
    think that Lohr implicitly requires us to disregard Stamps as
    controlling precedent.5   Although Stamps gave § 360k a somewhat
    broader preemptive scope than the Supreme Court’s opinion in Lohr,6
    none of the components of the preemption test in Lohr contradict
    the holding in Stamps as applied here.   As noted above, the Supreme
    Court held that for preemption under § 360k, there must be a state
    requirement--which does not exclude common law tort duties--with
    5
    In fact, after Lohr, both the Sixth and the Seventh Circuits
    determined that the PMA process constitutes specific federal
    requirements that preempt state tort suits. Kemp v. Medtronic, 
    231 F.3d 216
    , 226-227 (6th Cir. 2000); Mitchell v. Collagen Corp., 
    126 F.3d 902
    , 913 (7th Cir. 1997).       These decision parallel our
    reasoning in Stamps.    Although not all courts have found that
    common law tort suits relating to the device are preempted by the
    PMA process, see Goodlin v. Medtronic, Inc., 
    167 F.3d 1367
    (11th
    Cir. 1999) (finding that plaintiffs’ state law tort claims were not
    preempted by Medtronic’s compliance with the FDA’s PMA process),
    Brooks v. Howmedica, Inc., 
    236 F.3d 956
    (8th Cir. 2001) (finding
    that the PMA process constitutes specific federal requirements and
    common law tort suits can constitute specific state requirements
    but finding no conflict between them), vacated and reh’g en banc
    granted by 
    246 F.3d 1149
    (8th Cir. 2001), our question is not
    whether the panel in Stamps correctly decided the case, but whether
    the Supreme Court overruled Stamps. As long as Stamps is not
    inconsistent with the law set out in Lohr, this panel has no
    authority to overrule it.
    6
    For instance, Stamps notes that “section 360(k). . . ‘sweeps
    broadly’ and encompasses common law tort actions within its
    preemptive scope.” 
    Stamps, 984 F.2d at 1421
    . In contrast, Lohr
    remarks on the FDA’s “narrow understanding” of § 360k and finds
    that “it is impossible to ignore [the statutory and regulatory
    language’s] overarching concern that pre-emption occur only where
    a particular state requirement threatens to interfere with a
    specific federal interest.” 
    Lohr, 518 U.S. at 500
    , n. 18.
    15
    respect   to   a    medical     device   that    relates    to   the    safety    or
    efficiency of a device, or establishes a substantive requirement
    for the device, that is different from or in addition to a specific
    federal requirement.            
    Lohr, 518 U.S. at 500
    .           Stamps is not
    contrary to these criteria.
    A
    First, Stamps found that common law tort suits can impose
    state requirements for the purposes of preemption.                     
    Stamps, 984 F.2d at 1423
    .      Although not part of the holding of Lohr, a majority
    of the justices in Lohr clearly agreed with this proposition.                    
    See 518 U.S. at 509
    (“I conclude that state common-law damages actions
    do impose ‘requirements’ and are therefore pre-empted where such
    requirements        would     differ     from     those     imposed       by     the
    FDCA”)(O’Connor, J., dissenting).               
    Id. at 503
    (“[T]he MDA will
    sometimes      pre-empt     a     state-law      tort     suit.”)(Breyer,        J.,
    concurring).       Thus, it seems clear that Lohr did not overrule our
    holding in Stamps that state tort suits can constitute specific
    state requirements for the purposes of preemption.
    B
    Second, Stamps found that common law duties could be preempted
    “to the extent that they relate[d] to safety, effectiveness, or
    other MDA requirements.” 
    Stamps, 984 F.2d at 1423
    .                      With some
    similarity, Lohr observed that state requirements must, “with
    16
    respect to” medical devices, establish a “substantive requirement
    for    a    specific       device,”    and       must       relate    to    the    “safety    or
    effectiveness of the device or to any other matter included in a
    requirement applicable to the device.”                       
    Lohr, 518 U.S. at 500
    .          The
    Lohr       majority    opinion        did    not       articulate          when    common    law
    requirements may become “substantive requirements” or under what
    circumstances they are considered to be “specifically developed
    ‘with respect to’ medical devices.”                          
    Id. at 501.
             To determine
    whether Stamps’s understanding of common law duties as state
    requirements is consistent with Lohr, we must therefore consider
    Justice      Stevens’s       opinion        in   the        light    of    Justice    Breyer’s
    concurrence.
    Justice Breyer joined in the majority’s finding that “general
    state common-law requirements in this suit were not specifically
    developed ‘with respect to’ medical devices,” and that “these state
    requirements escape preemption . . . because their generality
    leaves them outside the category of requirements that § 360k
    envisioned      to    be    ‘with     respect         to’    specific      devices    such    as
    pacemakers.” 
    Lohr, 518 U.S. at 501
    .                          Justice Breyer’s separate
    concurrence, however, which recognizes that common law tort suits
    may be preempted, does not support a conclusion that common law
    claims are invariably too general for preemption.                            Indeed, Justice
    Breyer noted that he “basically agree[d] with Justice O’Connor’s
    17
    discussion” of whether the MDA can preempt a state law tort suit
    
    Id. at 503
    , which observed that “state common-law damages actions
    do impose ‘requirements’ and are therefore pre-empted where such
    requirements would differ from those imposed by the FDCA.” 
    Id. at 509
    .     Furthermore,   Justice    Breyer    specifically   disavowed     the
    portions of the opinion finding that “[i]t will be rare indeed for
    a court hearing a common-law cause of action to issue a decree that
    has ‘the effect of establishing a substantive requirement for a
    specific    device,’”   
    Id. at 502
       (plurality)   (citing   CFR     §
    808.1(d)(6)(ii)(1995)), and that the term “‘[r]equirement appears
    to presume that the State is imposing a specific duty on the
    manufacturer.”    
    Id. at 487.
         As noted by the Ninth Circuit, these
    apparently conflicting positions make analysis difficult:
    [I]t makes little sense to argue that Justice Breyer
    would write separately to make clear his position that
    duties arising under state common law can constitute
    state law “requirements” which can be preempted by the
    MDA, and then agree that because tort law consists of
    generally applicable principles, it is always preempted,
    even in the face of specific federal requirements.
    Papike v. Tambrands Inc., 
    107 F.3d 737
    , 742 (9th Cir. 1997).
    Of course, we are plainly bound to follow the majority opinion
    in Lohr; yet, we cannot fully grasp the opinion’s interpretation of
    when state common law requirements are considered “specifically
    developed with respect to medical devices” without Justice Breyer’s
    concurrence.     The majority opinion says that general common law
    18
    obligations are not a threat to federal requirements.   
    Id. at 501.
    Justice Breyer joins in the opinion, but, in his concurrence, he
    points out that these general common law requirements are not a
    threat because there is no potential for them to conflict with the
    federal requirements at issue in Lohr, namely, the requirements
    under the § 501(k) process.   He also notes that while common law
    duties may seem general, they can result in the imposition of
    standards that are very device-specific.   Justice Breyer takes the
    position that there is no preemption in Lohr because there is no
    conflict between the § 501(k) process and general common law
    duties.   See 
    Lohr, 518 U.S. at 508
    (Breyer, J., concurring)(“I can
    find no actual conflict between any federal requirement and any of
    the liability-creating premises of the plaintiffs’ state-law tort
    suit”).   Justice Breyer’s emphasis on the juxtaposition of the
    state and federal duties suggests that the Court would be less
    sanguine about the generality of common law duties if the federal
    requirements were specific, say, as in the PMA process.7
    7
    Justice Breyer even notes that “it is possible that the
    plurality also agrees” that
    insofar as the MDA pre-empts a state requirement embodied
    in a state statute, rule, regulation, or other
    administrative action, it would also pre-empt a similar
    requirement that takes the form of a standard of care or
    behavior imposed by a state-law tort action.
    
    Lohr, 518 U.S. at 504-05
    (Breyer, J. concurring). This observation
    suggests that it was important to Lohr’s conclusion that both state
    and federal requirements were general.
    19
    We think it is important to read the portion of the majority
    opinion addressing specific state requirements narrowly to avoid
    adopting as controlling law the broadly worded plurality opinion.
    Using Justice Breyer’s concurrence as a guide, we can conclude only
    that general duties of care can generate specific requirements that
    conflict with specific FDA requirements.    We read Justice Breyer’s
    special concurrence to recognize that, although a manufacturer’s
    general duty of care to avoid foreseeable dangers may be too
    general to merit preemption when there is no specific federal
    requirement, the proof required to establish a particularly alleged
    common law claim can be specific enough that the claim becomes
    preempted as an “additional” or “different” requirement than the
    FDA requirement.8   This reasoning is consistent with the majority
    opinion; while the general duty, standing on its own, is not a
    threat to federal requirements and is not developed specifically
    “with respect to” medical devices, the elements needed to prove a
    violation of that general duty may be very specifically tailored to
    the device, and the state court action may therefore threaten
    specific federal requirements.        Because the federal § 510(k)
    8
    However, common law duties that incorporate the PMA process,
    such as the general duty to take due care to comply with the PMA
    process in labeling or manufacturing, will never contain specific
    requirements that are additional to or different from federal
    requirements.   Therefore, claims based on those duties are not
    preempted. See 
    Lohr, 518 U.S. at 495
    .
    20
    requirements were not specific, it was unnecessary in Lohr to reach
    that conflict.    For instance, as an example of a general common law
    duty, the majority opinion uses a “general duty to inform users and
    purchasers of potentially dangerous items of the risks involved in
    their use.” 
    Id. at 501.
        While this duty does not seem “developed
    with respect to” a medical device specifically, proving a violation
    of that duty would require a jury to determine precisely what
    information users should have been provided.         Those determinations
    would not conflict with the § 510(k) process, because that process
    does not determine or approve what information consumers of the
    product should be provided.       On the other hand, however, a jury’s
    determination may directly conflict with FDA determinations and
    approvals made during the PMA review process.
    Thus, reading the language in the majority opinion through the
    lens of Justice Breyer’s concurrence, we cannot say that Lohr
    overruled   the   holding   of   Stamps   that   common   law   tort   claims
    challenging the safety or effectiveness of a device create specific
    requirements under state law.        After Lohr, however, we need to
    consider more than whether the common law duties relate to safety,
    effectiveness, or other MDA requirements; we need to focus on
    whether the specific requirements imposed by those common law
    duties threaten to interfere with specific federal requirements.
    C
    21
    Third, Stamps interpreted state tort causes of action as
    requirements “different from, or in addition to” the PMA process,
    thereby meriting preemption. 
    Stamps, 984 F.2d at 1423
    .                    This
    holding reflects a comparison of state and federal requirements and
    a consideration of how additional state common law requirements
    could undermine the FDA’s detailed PMA review process.                 On the
    other hand, Lohr compared common law duties with the § 510(k)
    process, which imposes relatively minor disclosure requirements,
    and   found   that   preemption   was     not    appropriate.     Given   the
    difference    between   the   intensive    PMA    review   and   the   minimal
    requirements under the § 510(k) process, Lohr does not call into
    question the holding of Stamps, that common law duties can impose
    requirements different from or in addition to the PMA process.
    Stamps, however, specifically disagreed with the proposition
    that “the lack of direct conflict between the state and federal
    regulations compel[led] a finding of no preemption.” 
    Id. at 1424.
    On the other hand, this proposition seems to have been adopted by
    the Supreme Court; Lohr notes that “[n]othing in § 360k denies
    Florida the right to provide a traditional damages remedy for
    violations of common-law duties when those duties parallel federal
    requirements.” 
    Lohr, 518 U.S. at 495
    .           This language tells us that
    tort suits based on a manufacturer’s failure to follow the FDA’s
    regulations and procedures are not preempted.              Indeed, that is
    22
    precisely what the district court held in this case, and that
    holding has not been appealed.        In the context of the PMA process,
    we agree that state tort suits that allege, as the basis of their
    claim, that the approved FDA requirements have not been met are not
    preempted.   Thus, Lohr narrows the language in Stamps’s preemption
    analysis   to   allow   for   state       actions   that   parallel   federal
    requirements.   This holding of Lohr, although overruling Stamps in
    that specific matter, does not, however, overrule Stamps as it
    applies to the case before us.
    D
    Fourth, Stamps held that the PMA process imposed specific
    federal requirements as to labeling, manufacturing, and design for
    the purposes of preemption.9     Here, too, there is no conflict with
    Lohr.   Although Lohr considered the application of the identical
    FDA regulation governing labeling, the labeling requirements in
    Lohr under the § 510(k) process were general; as it did not go
    through the PMA process, the labeling in Lohr was not specifically
    reviewed by the FDA.
    9
    During the PMA process, the FDA reviews the proposed labeling
    as well as the ingredients, components, methods, controls, and
    facilities used in the manufacture and processing of the device.
    21 U.S.C. § 360e(c)(1)(B)-(C),(F).       If any element of the
    manufacturing does not comply with regulations, or labeling is
    found to be false or misleading, the application for approval is
    denied. 
    Id. § 360e(d)(2)(A)-(D).
    23
    On its face, therefore, Lohr is limited to a finding that the
    § 501(k) process does not create specific federal requirements that
    conflict with state tort actions.               Indeed, the plurality’s opinion
    itself seems to leave this suggestion when it notes at several
    points     in   the   course   of   its         writing   the   very   significant
    differences between the FDA’s § 510(k) approval and a PMA approval.
    See, 
    e.g., 518 U.S. at 492-94
    (noting that the § 510(k) process “is
    focused on equivalence, not safety.                    As a result, substantial
    equivalence      determinations     provide         little   protection    to     the
    public”) (internal quotations and citations omitted).10                  The PMA is
    specifically focused on safety and requires a significant weighing
    of   considerations     specific      to    the    device    before    approval   is
    granted.    Thus, the fact that the § 510(k) process did not preempt
    state causes of action in Lohr does not indicate that the PMA
    process cannot preempt state tort causes of action.
    Thus, for all these reasons, we are fully convinced that
    Stamps has not been overruled and remains viable authority in this
    circuit    to   the   extent   that    we       have   described.      Instead    of
    overruling Stamps, Lohr should be read to implicitly affirm our
    holding in Feldt v. Mentor Corp., 
    61 F.3d 431
    (5th Cir. 1995), in
    which we reached the same conclusion as did the Court in Lohr, that
    10
    See also 
    id. at 480
    (“The agency emphasized, however, that
    this determination [of substantial equivalence] should not be
    construed as an endorsement of the pacemaker lead’s safety.”).
    24
    the § 510(k) process did not create preemptive 
    “requirements.” 518 U.S. at 484
    n.6.11    We think that our separate preemption treatment
    of the differing processes to device approval is further reflection
    and acknowledgment of the fact that the PMA process is of an order
    that is a magnitude apart from § 510(k) approval.
    In sum, we simply cannot read Lohr as establishing a new rule
    of law that contradicts our preexisting case law as it applies in
    this appeal.     Thus, although the broad holding of Stamps that the
    PMA process preempts state tort causes of action to the extent that
    they relate to safety, effectiveness or other MDA requirements is
    narrowed by Lohr’s finding that preemption requires substantive
    requirements imposed by common law duties to threaten federal
    requirements, Stamps remains controlling precedent for the purpose
    of this appeal.
    IV
    We turn now to apply Stamps, as narrowed by Lohr, to the case
    before us. The plaintiffs allege that Medtronic breached state law
    duties    by   designing   a   pacemaker   lead   that   contained   certain
    materials, by labeling the lead with certain warnings, and by
    manufacturing the lead in a certain way.          The design of the lead,
    11
    Our decision in Feldt explicitly discusses our decision in
    
    Stamps, 61 F.3d at 435
    , but, after analyzing the § 510(k) process,
    states, “there are, in short, no requirements or prohibitions
    specifically regarding the design of non-PMA Class III devices.”
    
    Id. at 438.
    25
    the labeling on the lead, and the manner of manufacturing of the
    lead were all submitted to the FDA in great detail and approved by
    the FDA in the PMA process.       Like the inadequate labeling, failure
    to warn, and defective design claims in Stamps, the plaintiffs’
    claims that the district court found to be preempted relate to
    areas specifically covered in the PMA process, and seek to impose
    requirements that are different from and, indeed, conflict with the
    PMA process.
    The   district    court   specifically    found   those   claims   that
    paralleled the federal process--the claims that Medtronic did not
    adequately comply with the PMA process--were not preempted under §
    360k. This finding comports with Lohr, that general duties of care
    that parallel federal requirements are not “different from, or in
    addition to” federal requirements, and are therefore not preempted.
    In Stamps, our circuit spoke to the precise question presented
    in this appeal.        And we have concluded here that the Supreme
    Court’s fractured ruling in Lohr does nothing to upset Stamps’s
    binding authority as respects this particular appeal. We therefore
    reaffirm that a medical device manufacturer’s compliance with the
    FDA’s PMA process will preempt state tort law claims brought with
    respect    to   that   approved    device     and   relating   to   safety,
    26
    effectiveness   or   other   MDA   requirements   when   the   substantive
    requirements imposed by those claims potentially conflict with PMA
    approval.   Thus, the plaintiffs’ tort law claims relating to
    design, manufacturing process, and failure to warn are preempted by
    the MDA.
    V
    For the reasons stated above, the judgment of the district
    court is
    A F F I R M E D.
    27